Diseases, Conditions, Syndromes

COVID-19 could outwit science unless knowledge stays current

The virus that causes COVID-19 has many variants, and if scientists don't stay on top of how it is changing in different parts of the world, testing for it may produce false negative results.

Diseases, Conditions, Syndromes

COVID-19 test results: What you need to know to understand them

Testing has been vital during the pandemic. Negative COVID-19 test results have allowed people the freedom to work and travel, while positive results have been used to isolate infected individuals and protect the wider community.

Diseases, Conditions, Syndromes

Herd immunity: can the UK get there?

Now that Britain and the US are crossing the 50% threshold of their populations vaccinated with the first dose, are they reaching herd immunity and can things return to normal soon?

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