Influenza has returned to Europe at a faster-than-expected rate this winter after almost disappearing last year, raising concerns about a prolonged “twindemic” with Covid-19 amid some doubts about the effectiveness of flu vaccines.
By Francesco Guarascio BRUSSELS (Reuters) - Influenza has returned to Europe at a faster-than-expected rate this winter after almost disappearing last.
By Francesco Guarascio BRUSSELS (Reuters) - Influenza has returned to Europe at a faster-than-expected rate this winter after almost disappearing last.