Tag Archives: distribution

[ad_1] Coronavirus deaths were on the rise across Africa in June, when 100,000 doses of the Pfizer-BioNTech vaccine reached Chad. The delivery looked like a test.a that the United Nations-backed program to …

[ad_1] Once the possible doubts about the effectiveness of the various COVID-19 vaccines have been evacuated in principle and with nuances, the questions to be resolved in the future seem limited to …

[ad_1] Received at the University of La Plata in 1986, worked at the city's pediatric hospital until 1990, then moved to the United States and Canada, where he worked at the University …