The World Health Organization does not expect widespread vaccinations against Covid-19 until the middle of next year, a spokeswoman said on Friday, stressing the importance of rigorous checks on their effectiveness and safety.
Fuente: Youtube
The World Health Organization does not expect widespread vaccinations against Covid-19 until the middle of next year, a spokeswoman said on Friday, stressing the importance of rigorous checks on their effectiveness and safety.
Fuente: Youtube
