COVID vaccine appointments have been cancelled, flights have been suspended and schools and roads are closed across the northeastern US after widespread heavy snowfall.
The number of deaths in the second wave of COVID-19 infections has now overtaken the number from the first wave, according to Sky News analysis of official mortality figures.
Delaying the second dose of the Pfizer jab – the current government strategy - may leave some elderly patients at risk of infection by the South African variant, new research suggests.
