WHO says Omicron subvariant is not more virulent | Science

The World Health Organization (WHO) yesterday declared that a more contagious version of Omicron, the SARS-CoV-2 variant that has already swept the globe in recent months, makes people no sicker than the original Omicron. The subvariant does not merit a separate designation with its own Greek letter, WHO said. The statement from the international organization … Read more

A New, ‘Highly Virulent’ HIV Variant Was Just Discovered in Europe

A newfound variant of HIV, the virus that causes AIDS, has been uncovered in the Netherlands and appears to cause faster disease progression compared with other versions of the virus.   The human immunodeficiency virus (HIV) infects and destroys immune cells called CD4 cells in the body, causing the number of these cells to plummet. … Read more