French scientists find out that dogs can smell the coronavirus. The result is very good.
Dogs are better than some of the simple COVID-19 tests. The tests are good when somebody is healthy. Sometimes, they do not always find out that somebody is ill.
Dogs smell the coronavirus in people´s sweat. They are almost always right.
Dogs can help ill people in airports and other crowded places. It is fast and cheap. People do not need to undergo unpleasant tests.
Difficult words: sweat (when somebody is hot, ill or when he does sports, and his skin gets wet), crowded (a place with many people), undergo (to have something happen to you and usually it is not nice).
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