Prognosis
Sinovac Shot Controls Covid in Brazil Town After 75% Covered
- Vaccine prevents 80% symptomatic disease in town of 45,000
- Deaths, hospitalizations and cases dropped sharply in Serrana
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A study of a small Brazilian town vaccinated with the shot made by Sinovac Biotech Ltd. showed it can control Covid-19 outbreaks more effectively than expected from clinical testing, giving another boost to the Chinese-made inoculation that’s relied on by dozens of developing countries.
While neighboring cities were being hit hard by the pandemic, Serrana -- a town of 45,000 people where the study was carried out by the Sao Paulo state government -- saw deaths fall by 95% in the five weeks right after the mass-vaccination was completed. Symptomatic cases dropped by 80% and hospitalizations decreased by 86%.