How herd immunity may protect us from COVID-19

Ovidiu Dugulan/iStockBy PRIYA AMIN, DR. MARK ABDELMALEK and LUCIEN BRUGGEMAN, ABC News(NEW YORK) -- The old saying goes: "There's strength in numbers." And now, it turns out numbers may be the greatest defense against the spread of COVID-19.It's a... Read More.

Could dogs help detect COVID-19 in humans?

Leon Neal/Getty ImagesBy DRAGANA JOVANOVIC, ABC News(LONDON) -- Dogs have a remarkable sense of smell and scientists are studying whether our canine friends could help identify people infected with the novel coronavirus.Medical Detection Dogs, a British charity, has already... Read More.