At least 48 passengers and crew members on Royal Caribbean’s Symphony of the Seas — the world’s largest cruise ship — have tested positive for COVID-19 and have been quarantined, the company said Monday. Of the 48 people who tested positive during the sailing, 98% were fully vaccinated. That’s not surprising, since the overall vaccination…  read on >  read on >

MONDAY, Dec. 20, 2021 (HealthDay News) – Proctor & Gamble has voluntarily recalled several dry shampoo sprays and hair conditioner spray products with brand names Pantene, Herbal Essences, Aussie and Waterless because of benzene contamination. This follows an earlier recall of some aerosol spray Old Spice and Secret products, also manufactured by Proctor & Gamble.…  read on >  read on >

Moderna Inc. announced Monday that its COVID-19 vaccine booster shot significantly increased antibodies against the Omicron variant. “The dramatic increase in COVID-19 cases from the Omicron variant is concerning to all. However, these data showing that the currently authorized Moderna COVID-19 booster can boost neutralizing antibody levels 37-fold higher than pre-boost levels are reassuring,” Moderna…  read on >  read on >

MONDAY, Dec. 20, 2021 ( HealthDay News) — As coronavirus cases start to surge once again across the United States, President Joe Biden will address the nation about the Omicron variant on Tuesday. “Building off his Winter Plan, the President will announce new steps the Administration is taking to help communities in need of assistance,…  read on >  read on >

Kids with autism have low levels of a protein that quiets overactive brain cells, which may explain why so many have epilepsy, according to a new study. Because the protein can be detected in cerebrospinal fluid, it may have promise as a marker to diagnose autism and as a potential treatment target for the epilepsy…  read on >  read on >

Large, simultaneous heat waves have become much more common in northern regions worldwide due to climate change and could have disastrous consequences, researchers warn. The investigators also found that these concurrent heat waves are becoming larger and hotter. “More than one heat wave occurring at the same time often has worse societal impacts than a…  read on >  read on >