Hurricane Delta has strengthened into a Category 4 storm, the National Hurricane Center announced just after its 11 a.m. Tuesday update. With winds between 130-156 mph, Delta is the strongest storm ...

MANILA, Philippines — If the new names of SARS Cov2 variants sound Greek to you, they are. Alpha, Beta, Delta, Gamma are now the names for the UK, South African, Indian and Brazil variants of the ...

As new Covid-19 variants keep emerging, how long will it be before we run out of letters in the Greek alphabet? The UK variant, which emerged in December, was given the name of the first letter of the ...