Una breve serie per capire Coronavirus passo dopo passo.
Passo 1
Currently, three COVID-19 vaccines have been approved in Russia: Sputnik V, EpiVacCorona, and Covivac.
Passo 2
According to the World Health Organization (WHO), 48 vaccines have been tested in different countries, with 11 passing through to phase III of trials.
Passo 3
Any viral infection, whether it is ARVI or temperature, changes the human immune system.
Passo 4
The symptoms of COVID-19 in children can be easy to miss since many children don't show any symptoms.
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