The former chief sanitary doctor of Russia, Gennady Onishchenko, listed the places where there is a possibility of "imperceptible" coronavirus infection. He spoke about this in an interview with Vechernaya Moskva.

According to the specialist, such a place, first of all, is the metro at rush hour. “With the heavy traffic of the metro, the chances of getting infected are very high, so you should always wear a mask,” he said.
In addition, the risk of contracting coronavirus is high in elevators, as well as in communal apartments.
“Kitchens, where people constantly hang out, as young people say, are especially dangerous in them,” Onishchenko stressed.
In addition, escalators and carriages of old trains, where there is no automatic ventilation system, are at risk.
Earlier, Mikhail Lebedev, an expert at the Center for Molecular Diagnostics of the Central Research Institute of Epidemiology of Rospotrebnadzor, assessed the chances of contracting coronavirus in an elevator. According to the specialist, there is a risk of COVID-19 infection in such a situation, since the room is small and not ventilated.