Poor mental health in US teens exacerbated by negative experiences during Covid-19 pandemic, survey finds

CNN  —  Poor mental health among teens in the United States was a concern before the Covid-19 pandemic, and major disruptions to school and social life since early 2020 have…

Current COVID Symptoms, BA.5 Subvariant, Negative Tests – NBC Chicago

Are you experiencing COVID symptoms but testing negative? Chicago’s top doc says you might need to test again, and again. Plus, are current COVID symptoms associated with newer omicron subvariants…

Testing Negative for COVID, But Have Symptoms? Here’s What You Should Know – NBC Chicago

If you’re experiencing COVID symptoms and were exposed, but continue testing negative for the virus, what does that mean? There have been some anecdotal reports of people contracting the virus…

New study shows warmer temperatures and increases during the summer are compensating for negative factors, stabilizing breeding trends — ScienceDaily

Largely because of well-publicized, diminishing winter colonies in Mexico and California, monarch butterflies across North America have been long thought to be declining as a result of diminishing summer habitat.…

Study shows unexpected negative impact by CO2 on important plankton group — ScienceDaily

Diatoms are the most important producers of plant biomass in the ocean and help to transport carbon dioxide (CO2) from the atmosphere into the deep ocean and thus regulate our…

V.P. Harris tests negative, emerges from isolation

Yet another mutation of the omicron variant is spreading fast in California. All Bay Area counties now have returned to the “high” level of transmission as measured by CDC metrics.…

Covid tests: how can people be positive on lateral flow and negative on PCRs? | Coronavirus

Lateral flow tests (LFTs) are an increasing part of our everyday lives. But for some individuals, a persistent clash with their PCR test results is undermining their confidence in the…

Can wearable technology predict the negative consequences of drinking? — ScienceDaily

“How much have you had to drink?” might seem like a simple question, but it is not always easy to answer. Although there are general guidelines about responsible alcohol consumption,…

Current marsh pollution has dramatic, negative effects on sea anemone’s survival — ScienceDaily

Stationary marine organisms that don’t ply the ocean, but spend their lives rooted in one spot, have evolved impressive ways to capture prey. The sea anemone Nematostella, for instance, burrows…

Calls Mount to Cut Covid-19 Quarantine Period for Fully Vaccinated Who Test Negative

More health experts, business people and government officials are questioning how long people infected with Covid-19 should quarantine if they are vaccinated and no longer testing positive. The U.S. Centers…