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CDC expected to revise coronavirus mask guidance as delta spreadsThe announcement will likely be that people who live in areas with high or substantial COVID-19 transmission should start wearing masks again.
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We may finally know why the delta variant of coronavirus is so infectiousPeople infected with the delta variant of the novel coronavirus may be carrying more than a thousand times more virus particles, according to an early new study.
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Delta variant now makes up 83% of new COVID-19 cases in USThe delta variant now makes up 83% of new U.S. cases, Dr. Rochelle Walensky, the director of the Centers for Disease Control and Prevention said on Tuesday (July 20).
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What is SARS-CoV-2's original reservoir?We may not know what animal SARS-CoV-2 came from, but similar viruses circulate in bats.
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Do you need a COVID-19 booster vaccine to prevent delta variant?People who are fully vaccinated against COVID-19 in the U.S. are strongly protected against the delta variant of the coronavirus, and do not need booster shots yet, according to experts.
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Baby elephant abandoned by internet-famous herd has been rescuedAn injured baby elephant that was abandoned by its herd in China has been rescued by a local animal rescue group, according to recent news reports.
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Could poop transplants help treat COVID-19?Poop transplants may have helped two patients with risk factors avoid severe COVID-19, a new case report suggests.
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Manatees are dying in record numbers in FloridaBetween Jan. 1 and July 2, 841 manatees died near and off the coast of Florida, a record-breaking number.
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FDA to announce new warning for J&J vaccine after cases of rare autoimmune disorderAround 100 cases of Guillain-Barré have been reported in people who received the J&J vaccine.
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Johnson & Johnson says COVID-19 vaccine protects against delta variantThe Johnson & Johnson COVID-19 vaccine is highly effective against the highly transmissible delta variant, the company announced.
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Respiratory virus spreads in the southern USParts of the southern U.S. are seeing off-season spikes in a respiratory virus called RSV, public health experts warn.
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Free divers' heart rates can drop as low as 11 beats per minuteThe world's best free divers can survive brain oxygen levels lower than those found in seals, according to a new study.
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Pfizer and Moderna vaccines may provide years of protection from COVID-19The mRNA vaccines will likely provide protection against the coronavirus for years if it doesn't evolve significantly, a small new study suggests.
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Fauci says delta variant is the 'greatest threat' in our fight against COVID-19. Why?A highly transmissible SARS-CoV-2 variant called "delta" has spread to nearly 100 countries around the world, including to the U.S., where it's likely to soon become the dominant variant.
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Earth has a 'pulse' of 27.5 million yearsMost major geological events in Earth's recent history have clustered in 27.5-million-year intervals — a pattern that scientists are now calling the "pulse of the Earth."
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Scientists convert plastic waste into vanilla flavoringScientists have figured out a way to convert plastic waste into vanilla flavoring with genetically engineered bacteria, according to a new study.
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'Supertasters' may have some innate protection against COVID-19Supertasters may be less likely to become infected with, or become severely ill from COVID-19, a new study finds.
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Toxic hairy caterpillars invade MaineThe tiny caterpillars have thin poisonous hairs that can cause poison-ivy-like rashes and breathing problems in some people.
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Frozen mouse sperm that spent 6 years in orbit used to conceive 8 healthy ‘space pups’Long-term storage on the International Space Station didn't cause DNA damage to freeze-dried mouse sperm.
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The 'friendship paradox' doesn't always explain real friendships, mathematicians sayYour friends are on average more popular than you are, according to a phenomenon known as the "friendship paradox." But it turns out, there's some nuance to that.
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7,000-year-old letter seal found in Israel hints at ancient long-distance tradeThe tiny clay impression dates back 7,000 years and was likely used to seal and sign deliveries, as well as to keep storerooms closed, according to a new study.
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How much does all the SARS-CoV-2 in the world weigh?If all the circulating SARS-CoV-2 particles were gathered together into one place, they would weigh somewhere between the weight of an apple and that of a young toddler.
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Mysterious event nearly wiped out sharks 19 million years agoAbout 90% of sharks disappeared from the ancient oceans in less than 100,000 years, but it's unknown why.
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Tons of toxic pellets blanket Sri Lanka beaches, causing environmental disasterA burning container ship dumped tons of plastic debris onto Sri Lanka's beaches, prompting a widespread environmental disaster.
