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Since 2016, only serotype 1 of dengue has circulated in the municipalities of São Paulo. Individuals infected with different serotypes over a period of six months to three years may progress to more severe forms of the disease. According to the state government, 610 cases of dengue fever were recorded on January 15. The number is similar to that of last year and, according to the State Department of Health, does not represent a worrying picture.
"Although the majority of the cases are not yet, [dengue tipo 2] is already circulating more regularly in the country: municipalities of the region of Araçatuba, São José do Rio Preto and a little Ribeirão Preto", said Marcos Boulos, infectious disease specialist, coordinator of disease control at the State Secretariat for Health.
Of the 645 municipalities in São Paulo, serotype 2 was detected in Andradina, Araraquara, Barretos, Bauru, Bebedouro, Catanduva, Espírito Santo do Pinhal, Indiaporã, Ipiguá, Itajobi, Mirbadol, Pereira Barreto, Piracicaba, Pirangi, Ribeirão Preto, Santo Antônio de Posse, São José do, Prefecture
He stated that dengue type 2 is not "particularly worse". The risk is related to the overlap of the virus. "It was circulating up to now type 1, and when a type circulates and a new serotype of the virus appears, it can be 2, 3 or 4; s it is 2, the number of cases of dengue fever may change further 1 "
The infectologist states that the haemorrhagic nomenclature of dengue fever is no longer used, since not all severe dengue cases develop with bleeding.
According to Boulos, health teams in cities where circulation is type 2 have been identified are being directed to give more cautious badistance to patients with the suspected disease. "In one case of dengue last year, when only type 1 was circulating, if the patient was fine, he took liquid by mouth, sent him home and, if he had anything, He was coming back today, to do this, I must have a conviction, maybe stay longer with the hospitalized patient to follow the evolution, "he explained.
The infectologist explains that there is no explanation for the beginning of the circulation of the new serotype. "It's random, these viruses circulate all over the world, when you have Aedes [aegypti] which is our case, if a person with dengue 2 or 3 and bitten by the vector can replicate this virus," he said. he explained. According to Boulos, there are four serotypes of dengue, three of which circulate in Brazil.
According to Boulos, there are four serotypes of dengue fever. In São Paulo, serotypes 1 and 2 are currently circulating. "Type 3 has now been detected in the Araçatuba region, but there has been only one case, so if it's a problem, it's in 2 or 3 years, not Now, we do not have 3. "
Yellow Fever
The Secretary of State for Health reinforces the guidelines for the municipalities of the Ribeira Valley for the Intensification of vaccination strategies against yellow fever. The region concentrates 12 confirmed cases of yellow fever this year, six of which have evolved into deaths. The balance is January 21st. The victims were infected in the Eldorado municipalities (9 cases, 4 deaths); Jacupiranga (1 death); Iporanga (1 death) and Cananéia (1 case)
Wild cases of the disease are transmitted by the mosquito Haemagogus and Sabethes. In urban areas, transmission is by the Aedes aegypti mosquito. There has been no case of urban yellow fever in Brazil since 1942.
Vale do Ribeira has been recommending the yellow fever vaccine for about a year, but the vaccination coverage in the region is 66%. day. All paulistas, who are not yet immunized, have a recommendation for yellow fever vaccine, especially those who live or visit areas with dense vegetation. The vaccine is available at health posts in the Unified Health System (UHS) and for effective protection it must be taken at least ten days before travel or forest areas.
Libra
Immunization coverage in the following countries: Yellow fever averages 65%, with variations between regions. In Baixada Santista, the percentage is similar. In Vale do Ribeira, coverage is 66%. In the Paraíba Valley and the north coast, it reaches 85%. In 2018, 502 cases of wild yellow fever were confirmed, 175 of which resulted in death. In 2017, there were 74 cases and 38 deaths.
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