Researchers say the study will be a opportunity to examine the safety of the vaccine, how long protection lasts and if it s effective against new variants in a real-world setting.
The study will be conducted in Toledo, population 143,000, in the west of Parana state, together with Brazil's National Vaccination Program, local health authorities, a hospital and a federal university. Booster shot improves immune response of chemotherapy patients; post-COVID depression helped by widely used drugs The following is a summary of some recent studies on COVID-19.
BRASILIA, Oct 6 (Reuters) - Pfizer Inc will study the effectiveness of its vaccine against Covid-19 by inoculating the entire population over the age of 12 in a town in southern Brazil, the company said on Wednesday.
Pfizer Inc will study the effectiveness of its vaccine against COVID-19 by inoculating the entire population over the age of 12 in a town in southern Brazil, the company said on Wednesday.
It was the first instance of a regulatory agency pledging to look into misdeeds at Prevent Senior, a major healthcare chain serving tens of thousands of patients in the Sao Paulo area. Booster shot improves immune response of chemotherapy patients; post-COVID depression helped by widely used drugs The following is a summary of some recent studies on COVID-19.