Since January 22, the U.S. authorities intend to expand the requirement to provide a certificate of vaccination for foreigners crossing the land border of the country on necessity, and not for tourism purposes.
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U.S. scientists conducted a unique experiment. During the COVID-19 outbreak in one prison, they used a PCR test to assess the presence of viral particles in the nasopharynx of inmates in shared cells.
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U.S. pharmaceutical company Pfizer has signed a $5.29 billion contract with the U.S. government to supply an antiviral drug for COVID-19
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A weakening of vaccine-provided immunity, combined with increased activity of the delta strain, threatens to worsen the coronavirus situation in the United States this coming winter.
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Three snow leopards have died from the effects of coronavirus at the Lincoln Children’s Zoo in Nebraska, USA.
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Those who have not developed antibodies to the coronavirus after illness or vaccination should be vaccinated early.
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Researchers at Cleveland Medical Center in the United States have found a link between sleep-disordered breathing and the risk of death from coronavirus infection.
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Hans Kluge, head of the World Health Organization’s (WHO) European office, said the end of the coronavirus pandemic depends on how quickly the world “learns to live with” the infection.
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Pfizer interrupted trials of its new drug against COVID-19 because of its high efficacy.
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More than 12,500 members of the U.S. Marine Corps may be fired because they have not been vaccinated against the coronavirus.
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