Now you are considered to have had ‘close contact’ with an individual if you’ve spent a cumulative—not consecutive—15 minutes with them over a 24-hour period. The Centers for Disease Control and ...

The Centers for Disease Control and Prevention has new guidance clarifying what exactly “close contact” means when it comes to transmission of SARS-Cov-2, the virus that causes COVID-19. The previous ...

The Centers for Disease Control and Prevention (CDC) revised its definition of "close contact" to an individual infected with the coronavirus on Wednesday to include multiple, brief exposures adding ...

Helen Branswell covers issues broadly related to infectious diseases, including outbreaks, preparedness, research, and vaccine development. Follow her on Mastodon and Bluesky. You can reach Helen on ...

Monkeypox is not a sexually transmitted infection (STI) or “gay disease” that is only spread between men who engage in sexual relations with other men, contrary to social media posts online. Sign up ...

Scientists measuring the frequency and duration of face-to-face interactions between household members have found that close contact had no impact on the transmission of SARS-CoV-2, the virus that ...

WASHINGTON — Federal health officials issued new guidance on Wednesday that greatly expands the pool of people considered at risk of contracting the novel coronavirus by changing the definition of who ...