blood samples
- COVID-19
Israel says Pfizer Covid vaccine is just 39% effective as delta spreads, but still prevents severe illness
A vaccine from Pfizer COVID-19 is less effective at preventing Delta variant infection than previous strains of coronavirus, the latest…
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The Lambda Covid Variant: Full Detail Report
The lambda variant has been detected in 29 countries, the majority of them in South America. In recent months it…
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