Coronavirus: the mechanism that can make dogs detect covid-19 up to 5 days before symptoms start

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Dogs are able to smell a lot more smells than humans

What does a person infected with covid-19 smell like? This is an answer that only a dog could give us with precision.

The olfactory ability of one of our favorite pets has become yet another tool to combat the covid-19 pandemic, which has already caused more than 20 million infections and a million deaths worldwide.

In countries such as Finland, Lebanon, Argentina, Chile, Germany, the United States, Colombia and Mexico, authorities are training dogs to detect people infected with the new coronavirus.

A few weeks ago, dogs specially trained to detect covid-19 by smell began to track passengers as part of a pilot program at Helsinki airport in Finland.

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