Japan on Dec. 1 announced its second infection case with the Omicron variant of the novel coronavirus, a man in his 20s who arrived at Narita Airport from Peru late last month. Chief Cabinet ...

A large proportion of individuals who developed post-COVID conditions following an infection with the Omicron variant exhibited prolonged persistence of symptoms. A faster post-COVID-19 condition ...

A woman who arrived at Narita Airport from the United States was confirmed as Japan’s first infection case with the Omicron XE derivative ... required self-isolation period for arrivals who ...

COVID-19 continues to be a threat to America’s health, causing more illness and death than either influenza or resp ...

The second possibility is that Covid has now settled into a rut, which will see it become progressively milder until it ...

New research reveals a modest link between COVID-19 infection during pregnancy and increased risk of gestational diabetes, ...

New research emphasizes the need for ongoing COVID-19 protection for people with weakened immune systems, with scalable tests ...

It can happen even after a mild case and at any age, although rates have declined since the pandemic’s early years. Studies show vaccination can lower the risk. It also is not clear what causes long ...