Scientists are cautiously optimistic after an HIV vaccine trial showed promising results in initial human trials.
A study published in the medical journal The Lancet examined the effects of the vaccine in subjects tested from 12 HIV clinics in East Africa, South Africa, Thailand, and other countries. United States.
It produced an anti-HIV immune system response in 393 people
was administered with placebo
All vaccine recipients responded by producing some form of immune response against HIV during testing.
A parallel study by researchers tested vaccine strains on rhesus monkeys for resistance to simian-human immunodeficiency virus, an HIV-like disease that affects monkeys.
The most effective vaccine combination 67% of the monkeys used in the trial against the virus.
As the tests were found to be conclusive, a second series of trials is underway on a group of 2,600 women in sub-Saharan Africa.
Dr. Dan H Barouch, principal investigator of the study and professor at Harvard Medical School, said he was "satisfied" with the research, but insisted that the results be treated with caution.
"I would say that we are satisfied with these data so far, but we must interpret the data with caution," he told CNN.
"We must recognize that developing a vaccine HIV is an unprecedented challenge, and we will not know for sure whether this vaccine will protect humans. "
Nearly 37 million people worldwide are living with HIV or AIDS, more than two million of whom are
The World's News in Pictures
1/52 7 July 2018
Residents watch the city flooded by heavy rains in Kurashiki, Okayama Prefecture, West Japan. Abundant rains have left 47 dead, over 49 people and five others in serious condition in southwest and western Japan, reported public television on July 07, 2018. The Japan Meteorological Agency has warned of floods in the southwest and southwest. In nine prefectures of western and southwestern Japan, the authorities issued evacuation orders to more than one million people in the southwestern and western parts of the country. Japan
EPA
2/52
3/52 6 July 2018 [19659016Unegarded'honneurmontreunephotodeSamarnKunan38ansunancienmembredel'unitéSEALdelamarinethaïlandaisequiestmortentravaillantpoursauver12garçonsetleurentraîneurpiégédansunegrotteinondéedansunaéroportdelaprovincedeRayongenThaïlande19659017] REUTERS
4/52 5 July 2018
The International Space Station, in the center, passes in front of the Moon in its Earth orbit as photographed in Salgotarjan, Hungary.
MTI via AP
] 5/52 4 July 2018
The former Prime Minister of Malaysia, Najib Razak (C), arrives at Kuala Lumpur High Court, Kuala Lumpur, Malaysia. Former Malaysian Prime Minister Najib Razak appeared in court to face charges of corruption
EPA
6/52 July 3, 2018
Rescuers leave the troglodyte complex of Tham Luang, as members of the football team -16 and his coach were found alive according to a report from the local press, in the province of Chiang Rai, northern Thailand
Reuters
7/52 2 July 2018
Firefighters Struggle Pawnee Fire jumps on Highway 20 near Clearlake Oaks, California
AFP / Getty
8/52 1 July 2018
The presidential candidate Andres Manuel Lopez Obrador salutes his supporters He arrives at a polling station during the presidential election in Mexico City
Reuters
9/52 30 June 2018
North Korean leader Kim Jong Un inspects the unit 1524 of the People's Army of Korea (KPA) KCNA through the intermediary of Reuters
10/52 29 Ju 2018
The crater of Mount Agung illuminates the lava and spits volcanic smoke on the island of Bali. The Indonesian tourist island has closed its international airport, blocking thousands of travelers, while the volcano of Mount Agung spilled a column of ash and smoke of 2,500 meters (8,200 feet)
AP
11/52 28 June 2018
The remains of market stalls were broken after a fire swept through a market in Nairobi, Kenya. Several people died in the fire and about 70 receive treatment at the hospital, with rescue teams who remained in search of the scene.
AP
12/52 June 27, 2018
Smoke rises in the rebellion of the city of Nawa, in southern Syria, during air strikes by Syrian regime forces. The Syrian army launched an assault on the critical point of the southern city of Daraa, after a week of deadly bombing of the surrounding countryside, causing massive displacement. Government forces aim to recapture the south of the country, a strategic area bordering Jordan and the Golan Heights occupied by Israel
AFP / Getty
13/52 26 June 2018
French President Emmanuel Macron greets Pope Francis at the end of a private audience at the Vatican
AFP / Getty Images
14/52 25 June 2018
The frame of a Peugeot Abandoned 404 rests on the Nigerian Tenere The desert region south of the Sahara, Sunday, June 3, 2018. Once a well-worn road for land tourists, the 4,500-kilometer highway is a privileged path for migrants heading for to the north in the hope of a better life.
AP
15/52 24 June 2018
Saudi women celebrate after driving their car to Al Khobar after the law allowing women to drive came into effect. Saudi Arabia will allow women to drive from June 24, ending the world's only ban on motorists.
REUTERS
16/52 23 June 2018
People gather while the wounded are helped by doctors. scene of an explosion at a rally to support new reformist Prime Minister Abiy Ahmed on Meskel Square in Addis Ababa, Ethiopia. Reports indicate that the explosion occurred shortly after he spoke to thousands of his supporters. He then spoke to the crowd after, saying that a people had been killed.
EPA
17/52 22 June 2018
The participants of the Naked Mofo Dark Solstice Swim are seen in the Derwent River at dawn, in Hobart, Australia,
Reuters
18/52 21 June 2018
Indian Prime Minister Narendra Modi participates in a mass yoga session with fellow practitioners to mark the International Day of Yoga at the Institute of Forest Research (FRI) in Dehradun.
On June 21, tens of thousands of yoga practitioners from around the world are expected to celebrate the Fourth International Day of Yoga, proposed by the Indian Prime Minister in 2014 at the UN General Assembly and adopted unanimously .
AFP / Getty
19/52 June 20, 2018
A woman and a child are told that they will have to wait before crossing the American border because the policy of "tolerance "Trump administration's zero" in regard to immigration creates confusion
20/52 19 June 2018
People wave a banner with a picture of the Turkish president Recep Tayyip Erdogan at a rally of supporters of his ruling party, Justice and Development (AKP), in Istanbul, Turkey. Turkish President Erdogan announced on April 18 that Turkey would hold early presidential and parliamentary elections on June 24, 2018, after the elections scheduled for November 2019.
EPA
21/52 June 18, 2018 [19659016Housingpeoplepassbyawalled-outexampleofawalled-inwalledin#39;Osakadansl'swestJapanTheKingdomofEnglandwhichtookuptheWestofJapanhadthreedeadandover50wounded
EPA
22/52 17 June 2018
Juan Carlos Osorio, director of the Mexican National Football Team, celebrates his World Cup Victory against Germany
Getty
23/52 16 June 2018
Kashmiri youth through the stones during clashes between protesters and Indian government forces in Srinagar
AFP / Getty Images
24/52 16 June 2018
People are deco up on the flybridge of a yacht while a fireworks illuminates the sky above the luxury hotel Yas Viceroy on the first day of the Muslim holiday of the year. Eid Al-Fitr
EPA
25/52 15 June 2018
Somali Muslims participate in the Eid al-Fitr prayer marking the end of the holy month of Ramadan on the Jamacadaha stadium football field in Mogadishu
AFP / Getty Images
26/52 14 June 2018
The performers perform at the opening ceremonies of the 2018 World Cup in Russia before the Group A match between Russia and Saudi Arabia at the Luzhniki stadium in Moscow
Getty
27/52 13 June 2018 [19659016] Pope Francis arrives to lead the group. Wednesday's general audience on St. Peter's Square at the Vatican
Reuters
28/52 12 June 2018
US President Donald Trump s wanders hand with North Korean leader Kim Jong Un at their historic meeting at the Capella Hotel on Sentosa Island in Singapore
Reuters
29/52 11 June 2018
US President Donald Trump watches a cake brought to him during a working luncheon with Singapore Prime Minister Lee Hsien Loong during his visit to The Istana, the official residence of the Prime Minister, in Singapore. Kim Jong Un and Donald Trump will meet on June 12 for an unprecedented summit, the President of the United States calling it a "one hit" in peace.
AFP / Getty
30/52 10 June 2018 [19659016] Muharrem Ince, candidate for the presidency of the main opposition Republican Party (CHP), expresses himself on the roof from a bus at a campaign meeting in Istanbul
AFP / Getty
31/52 9 June 2018
French President Emmanuel Macron, German Chancellor Angela Merkel and Japanese Prime Minister Shinzo Abe addressing US President Donald Trump on the second day of the G7 meeting in Charlevoix, Canada. John Bolton, US National Security Advisor
EPA
32/52 8 June 2018
Former South African President Jacob Zuma sings and dances on stage after delivering a speech at of a rally in the High Court, Durban
AFP / Getty
33/52 7 June 2018
Russian President Vladimir Putin listens to a question during his annual appeal in Moscow. Putin organizes annual call fairs, which usually provide a platform for ordinary Russians to appeal to the president on issues ranging from foreign policy to housing and public services.
AP
34/52 6 June 2018 [19659016] Protesters waving flags and chanting slogans during a demonstration against the use of the term "Macedonia" in any solution to a dispute between Athens and Skopje over the name of the former Yugoslav Republic, in the city of Pella, in the north of the country.
35/52 June 5, 2018
Police officers salute as the police boxes Soraya Belkacemi, 44, and Lucile Garcia, 54, arrive at their funeral in Liège. The two officers and a spectator were killed Tuesday in Liège by an armed man. The police then killed the attacker, and other police officers were injured during the shooting.
AP
36/52 4 June 2018
A rescuer carries a child covered with ashes after the violent eruption of a volcano in El Rodeo, Guatemala. Fuego Volcano, whose name means "Volcano of Fire", spewed a hot lava flow of 8 km (5 miles) red and vomited a thick plume of black smoke and ash that rained down on the capital and d & # 39; 39, other regions. Dozens were killed in three villages
Reuters
37/52 June 3, 2018
A recycler drags a huge sorted paper bag for recycling in front of a pile of non-recyclable materials on the site Richmond landfill. in the industrial city of Bulawayo. Plastic waste remains a difficult problem of waste management because of its non-biodegradable nature, if not properly managed, plastics end up polluting waterways, wetlands and sewers rainfalls that flood the cities of Zimbabwe. Urban and rural areas struggle relentlessly against a plague of plastic waste. On June 5, 2018, the United Nations celebrates World Environment Day, which sees plastic pollution as the main theme of this year.
AFP / Getty
38/52 2 June 2018
Razan al-Najjar, a 21-year-old medical volunteer, at his funeral after being shot by Israeli soldiers near the border fence of Gaza, June 1, during another day of demonstrations and violence. It was shot dead near Khan Yunis in the southern part of the country, health ministry spokesman Ashraf al-Qudra said, bringing to 123 the number of Gazans killed by Israeli gunfire since the end of March. .
AFP / Getty
52 1 June 2018
The new Spanish Prime Minister, Pedro Sanchez, poses after a vote on a motion of censure in the Spanish Parliament in Madrid. The Spanish parliament has ousted Prime Minister Mariano Rajoy by a vote of defiance provoked by fury against the misfortunes of corruption of his party, with his socialist archbishop, Pedro Sanchez, automatically taking power.
AFP / Getty [1965901] 31 May 2018
Zinedine Zidane looks after a press conference to announce his resignation as director of Real Madrid. He confirmed that he was leaving the Spanish giants a few days after winning the Champions League for the third year in a row.
AFP / Getty
41/52 May 30, 2018
A worker cleans Millenium migrants settle along the Canal de Saint-Denis near the Porte de la Villette, in north of Paris, after his evacuation on May 30th. More than a thousand migrants and refugees were evacuated early in the morning. weeks along the Canal
AFP / Getty
42/52 May 29, 2018
Police and ambulances are seen on the site where an armed man shot and killed three people, including two policemen, before being killed by elite officers, in the city of Liège, in the east of Belgium.
AFP / Getty
43/52 May 28, 2018
French President Emmanuel Macron meets Mamoudou Gassama, 22, from Mali, at the presidential palace of the Elysee Palace in Paris. Gassama living illegally in France is honored by Macron for the expansion of an apartment building during the weekend to save a 4 year old child who hangs from a fifth floor balcony.
AP
44/52 27 May 2018
Migrants wait to disembark from the vessel Aquarius in the Sicilian port of Catania, Italy
Reuters
45/52 May 2018
Ireland is awaiting the official result of a referendum that could end the ban on abortion in the country. Co-director of Together For Yes Ailbhe Smyth speaks to media after exit polls suggest victory for Yes campaign
PA Wire / PA Images
46/52 May 25, 2018 [19659016] Producer Harvey Weinstein arrives in the 1st district of Manhattan where he went to the New York police for charges of sexual misconduct.
Reuters
47/52 May 24, 2018
Russian President Vladimir Putin (R) meets His French counterpart Emmanuel Macron at Konstantin Palace in Strelna, near St. Petersburg, May 24, 2018
Getty Images
48/52 May 23, 2018
Protesters protest against Tamil Nadu House after at least 10 people were killed when police opened fire on protesters demanding closure of a plant for environmental reasons in the city of Thoothukudi in southern Tamil Nadu, New Delhi
ANI via Reuters
49/52 May 22, 2018 [19659016] People demonstrate to Paris during a national day p French public sector employees and officials mock the revisions proposed by French President Emmanuel Macron, calling them the "attack" of the centrist leader against civil services and their economic security omics.
AFP / Getty
50/52 21 May 2018
Quim Torra, new Catalan president, arrives at Catalan separatists imprisoned in the prison of Estremera, near Madrid
AFP / Getty
51/52 May 20, 2018 [19659016NationalPresidentofVenezuelaNicolasMaduroavotaspresidentialconcessionstoCaracasMadurochhashavedanothermandatetopower
AFP / Getty
52/52 May 19, 2018
A channeled lava emerges on the lower part of the East Rift of the volcano Kilauea in Hawaii. The USGS said on its website that a "pahoehoe lava flow that emerged from crack 20 … continues to flow southeast," the fastest three "lobes" progressing to 210 meters per hour.
AFP / US Geological Survey
1/52 7 July 2018
Residents observe the city flooded by heavy rains in Kurashiki, Okayama Prefecture, in the west of Japan. Heavy rains left 47 dead, more than 49 people and five others in serious condition in southwest and western Japan, reported public television on July 07, 2018. The Japan Meteorological Agency warned of floods in the southwest and southwest. In nine prefectures of western and southwestern Japan, the authorities issued evacuation orders to more than one million people in the southwestern and western parts of the country. Japan
EPA
2/52
3/52 6 July 2018 [19659016Unegarded'honneurmontreunephotodeSamarnKunan38ansunancienmembredel'unitéSEALdelamarinethaïlandaisequiestmortentravaillantpoursauver12garçonsetleurentraîneurpiégédansunegrotteinondéedansunaéroportdelaprovincedeRayongenThaïlande19659017] REUTERS
4/52 5 July 2018
The International Space Station, in the center, passes in front of the Moon in its Earth orbit as photographed in Salgotarjan, Hungary.
MTI via AP [19659179] 5/52 4 July 2018
The former Prime Minister of Malaysia, Najib Razak (C), arrives at the Kuala Lumpur High Court, Kuala Lumpur , in Malaysia. Former Malaysian Prime Minister Najib Razak appeared in court to face charges of corruption
EPA
6/52 July 3, 2018
Rescuers of the Cave Complex of Tham Luang -16 football teams and their coach were found alive according to a local media report, in the northern province of Chiang Rai, Thailand.
Reuters
7/52 2 July 2018
Firefighters struggling to control the flames surrounding a fire truck as Pawnee's fire jumps off Highway 20 near Clearlake Oaks, California [19659017] AFP / Getty
8/52 1 July 2018
Presidential candidate Andres Manuel Lopez Obrador arrives at a polling station during the presidential election in Mexico City
Reuters [19659176] 9/52 June 30, 2018
North Korean leader Kim Jong Un inspects the 1524 unit of the Korean People's Army (KPA) KCNA via Reuters
10/52 ] 29 Ju 2018
The crater of Mount Agung illuminates the lava and spits volcanic smoke on the island of Bali. The Indonesian tourist island closed its international airport, blocking thousands of travelers, while the volcano of Mount Agung spilled a column of ash and smoke of 2,500 meters (8,200 feet)
AP
11/52 28 June 2018
The remains of market stalls were broken after a fire swept through a market in Nairobi, Kenya. Several people died in the fire and about 70 are receiving treatment at the hospital, with rescue teams continuing to search the premises.
AP
12/52 June 27, 2018
Smoke rises in the rebellion of the city of Nawa, in southern Syria, during air strikes by Syrian regime forces. The Syrian army launched an assault on the critical point of the southern city of Daraa, after a week of deadly bombing of the surrounding countryside, causing massive displacement. The objective of the government forces is to retake the southern part of the country, a strategic area bordering Jordan and the Golan Heights occupied by Israel
AFP / Getty
13/52 26 June 2018
French President Emmanuel Macron salutes Pope Francis at the end of a private audience at the Vatican
AFP / Getty Images
14/52 25 June 2018
The chassis of a Peugeot 404 abandoned lies in the Tenere in Niger The desert region of the southern Sahara, Sunday, June 3, 2018. Formerly a well-worn road for land tourists, the 4,500-kilometer highway is a privileged path for migrants heading to the north in the hope of a better life. thousands of people who are expelled to the south from Algeria
AP
15/52 24 June 2018
Saudi women celebrate after driving their car to Al Khobar after the law allowing women to drive. Saudi Arabia will allow women to drive from June 24, ending the world's only ban on motorists.
REUTERS
16/52 23 June 2018
People gather while the wounded are helped by doctors. scene of an explosion at a rally to support new reformist Prime Minister Abiy Ahmed on Meskel Square in Addis Ababa, Ethiopia. Reports indicate that the explosion occurred shortly after he spoke to thousands of his supporters. He then spoke to the crowd after, saying that a people had been killed.
EPA
17/52 June 22, 2018
Participants in the solstice bath Nude Dark Mofo are seen in the Derwent River at dawn in Hobart, Australia,
Reuters
18/52 21 June 2018
Indian Prime Minister Narendra Modi participates in a mass yoga session with fellow practitioners to mark the International Day of Yoga at the Institute of Forest Research (FRI) in Dehradun.
On June 21, tens of thousands of yoga practitioners from around the world are expected to celebrate the Fourth International Day of Yoga, proposed by the Indian Prime Minister in 2014 at the UN General Assembly and adopted unanimously .
AFP / Getty
19/52 June 20, 2018
A woman and a child are told that they will have to wait before crossing the US border because the "zero tolerance" policy "Trump administration with respect to immigration creates confusion
Getty
20/52 June 19, 2018
People wave a banner with a photo Turkish President Recep Tayyip Erdogan at a rally of supporters of his ruling party, Justice and Development (AKP), in Istanbul, Turkey. Turkish President Erdogan announced on April 18 that Turkey would hold early presidential and parliamentary elections on June 24, 2018, after the elections scheduled for November 2019.
EPA
21/52 June 18, 2018 [19659016Housingpeoplepassbyawalled-outexampleofawalled-upexampletoOsakadansl'swestJapanLordfoundationquiafrappelledWestJapanfromthreeandmore50weds
EPA
22/52 17 June 2018
Juan Carlos Osorio, director of the Mexican National Football Team, celebrates Victory in cup against Germany
Getty
23/52 June 16, 2018
Kashmiri youth through stones during clashes between protesters and Indian government forces in Srinagar
AFP / Getty Images
24/52 June 16, 2018
People are standing out on the f lybridge from a yacht while a fireworks illuminates the sky above the luxury hotel Yas Viceroy on the first day of the Muslim holiday of Eid Al- Fitr
EPA
25/52 June 15, 2018
Somali Muslims participate in the prayer of Eid al-Fitr which marks the end of the holy month of Ramadan on the football field of the Jamacadaha stadium in Mogadishu
AFP / Getty Images
26/52 14 June 2018
The performers perform at the opening ceremonies of the 2018 World Cup in Russia before the Group A match between Russia and Saudi Arabia at Luzhniki Stadium in Moscow
Getty
27/52 13 June 2018 [19659016] Pope Francis arrives to lead the general audience of Wednesday on St. Peter's Square at the Vatican
Reuters
28/52 12 June 2018
US President Donald Trump shakes hands with with North Korean leader Kim Jong Un at their historic meeting at the Capella Hotel on Sentosa Island in Singapore
Reuters
29/52 11 June 2018
US President Donald Trump is watching a cake brought to him during a working luncheon with Singapore Prime Minister Lee Hsien Loong during his visit to The Istana, the prime minister's official residence in Singapore. Kim Jong Un and Donald Trump will meet on June 12 for an unprecedented summit, the President of the United States calling it a "one hit" in peace.
AFP / Getty
30/52 10 June 2018 [19659016] Muharrem Ince, candidate for the presidency of the Republican People's Party (CHP), the main opposition party in Turkey, has been giving a speech since the roof of a bus at a campaign meeting in Istanbul
AFP / Getty
31/52 9 June 2018
French President Emmanuel Macron, German Chancellor Angela Merkel and Japanese Prime Minister Shinzo Abe addressing US President Donald Trump on the second day of the G7 meeting in Charlevoix, Canada. John Bolton, US National Security Advisor
EPA
32/52 8 June 2018
Former South African President Jacob Zuma sings and dances on stage after delivering a speech at of a rally in the High Court, Durban
AFP / Getty
33/52 7 June 2018
Russian President Vladimir Putin listens to a question during his annual appeal in Moscow. Putin organizes annual call fairs, which usually provide a platform for ordinary Russians to appeal to the president on issues ranging from foreign policy to housing and public services.
AP
34/52 6 June 2018 [19659016] Protesters waving flags and chanting slogans during a demonstration against the use of the term "Macedonia" in any solution to a dispute between Athens and Skopje over the name of the former Yugoslav Republic, in the city of Pella, in the north of the country.
35/52 5 June 2018
The police salute the coffins of women police officers Soraya Belkacemi, 44, and Lucile Garcia, 54, who arrive in Liège at their funerals. The two officers and a spectator were killed Tuesday in Liège by an armed man. The police then killed the attacker, and other police officers were injured during the shooting.
AP
36/52 4 juin 2018
Un secouriste porte un enfant couvert de cendres après l'éruption violente d'un volcan à El Rodeo, au Guatemala. Volcan de Fuego, dont le nom signifie «Volcan de feu», a craché une coulée de lave chaude rouge de 8 km (5 milles) et a vomi un épais panache de fumée noire et de cendre qui a plu sur la capitale et d'autres régions. Des douzaines ont été tuées dans trois villages
Reuters
37/52 3 juin 2018
Un recycleur traîne un énorme sac de papier trié pour le recyclage devant un tas de matériaux non recyclables sur le site d'enfouissement sanitaire de Richmond. dans la ville industrielle de Bulawayo. Les déchets plastiques restent un problème difficile de gestion des déchets en raison de leur nature non-biodégradable, s'ils ne sont pas correctement gérées, les plastiques finissent par polluer les voies d'eau, les zones humides et les égouts pluviaux qui inondent les villes du Zimbabwe. Les zones urbaines et rurales luttent sans relâche contre un fléau de déchets plastiques. Le 5 juin 2018, les Nations Unies célèbrent la Journée mondiale de l'environnement selon laquelle la pollution par les matières plastiques est le thème principal de cette année
AFP / Getty
38/52 2 juin 2018
Razan al-Najjar, une bénévole médicale de 21 ans, lors de ses funérailles après avoir été abattue par des soldats israéliens près de la barrière frontalière de Gaza, le 1er juin, lors d'une autre journée de manifestations et de violences. Elle a été abattu près de Khan Yunis dans le sud du territoire, a indiqué le porte-parole du ministère de la Santé, Ashraf al-Qudra, portant à 123 le bilan des Gazaouis tués par les tirs israéliens depuis la fin mars.
AFP / Getty
52 1 juin 2018
Le nouveau Premier ministre espagnol, Pedro Sanchez, pose après un vote sur une motion de censure au Parlement espagnol à Madrid. Le parlement espagnol a évincé le Premier ministre Mariano Rajoy par un vote de défiance suscité par la fureur contre les malheurs de la corruption de son parti, avec son archevêque socialiste, Pedro Sanchez, prenant automatiquement le pouvoir.
AFP / Getty
31 Mai 2018
Zinedine Zidane regarde après une conférence de presse pour annoncer sa démission en tant que directeur du Real Madrid. Il a confirmé qu'il quittait les géants espagnols, quelques jours après avoir remporté la Ligue des Champions pour la troisième année consécutive.
AFP / Getty
41/52 30 mai 2018
Un travailleur nettoie Des migrants du Millenaire s'installent le long du canal de Saint-Denis près de la porte de la Villette, dans le nord de Paris, après son évacuation le 30 mai. Plus d'un millier de migrants et réfugiés ont été évacués tôt le matin.
AFP / Getty
42/52 29 mai 2018
La police et les ambulances sont vues sur le site où un homme armé a abattu trois personnes, dont deux policiers, avant d'être tué par des officiers d'élite, dans la ville de Liège, dans l'est de la Belgique.
AFP / Getty
43/52 28 mai 2018
Le président français Emmanuel Macron rencontre Mamoudou Gassama, 22 ans, originaire du Mali, au palais présidentiel de l'Elysée à Paris. Gassama, qui vit illégalement en France, est honoré par Macron pour avoir escaladé un immeuble d'appartements pendant le week-end afin de sauver un enfant de quatre ans qui pend d'un balcon du cinquième étage.
AP
44/52 27 mai 2018
Migrants wait to disembark from the ship Aquarius in the Sicilian harbour of Catania, Italy
Reuters
45/52 26 May 2018
Ireland awaits the official result of a referendum that could end the country's ban on abortion. Co-Director of Together For Yes Ailbhe Smyth speaks to the media after exit polls suggested victory for the Yes campaign.
PA Wire/PA Images
46/52 25 May 2018
Film producer Harvey Weinstein arrives at the 1st Precinct in Manhattan where he turned himself in to New York police for sexual misconduct charges.
Reuters
47/52 24 May 2018
Russian President Vladimir Putin (R) meets with his French counterpart Emmanuel Macron at the Konstantin Palace in Strelna, outside Saint Petersburg, on May 24, 2018
Getty Images
48/52 23 May 2018
People protest outisde the Tamil Nadu House after at least 10 people were killed when police fired on protesters seeking closure of plant on environmental grounds in town of Thoothukudi in southern state of Tamil Nadu, in New Delhi.
ANI via Reuters
49/52 22 May 2018
People demonstrate in Paris during a nationwide day p rotest by French public sector employees and public servants against the overhauls proposed by French President Emmanuel Macron, calling them an "attack" by the centrist leader against civil services as well as their economic security.
AFP/Getty
50/52 21 May 2018
Newly appointed Catalan president Quim Torra arrives to visit jailed Catalan separatist politicians at the Estremera jail near Madrid.
AFP/Getty
51/52 20 May 2018
Venezuelan President Nicolas Maduro casts his vote during the presidential elections in Caracas. Maduro was seeking a second term in power.
AFP/Getty
52/52 19 May 2018
Channelized lava emerges on Kilauea Volcano's lower East Rift Zone on Hawaii. The USGS said on its website that "a fast-moving pahoehoe lava flow that emerged from fissure 20… continues to flow southeast," with the quickest of three "lobes" progressing at 230 yards (210 meters) per hour.
AFP/US Geological Survey
According to UNAIDS, the joint United Nations programme on HIV and AIDS, an estimated 1.8 million people worldwide become newly infected with the virus each year – roughly 5,000 new cases every day.
Although HIV treatments have become exponentially better since the disease was officially identified in the early 1980s, a vaccine has proved elusive.
Prep, or pre-exposure prophylaxis, can prevent HIV being transferred sexually between partners, with experts suggesting it could prevent one in four cases.
However, the drug must be taken regularly, unlike a vaccine, in order to prevent the user contracting the virus.