...America and the world are getting more frequent and bigger multibillion dollar tropical catastrophes like Hurricane Laura, which is menacing the U.S. Gulf Coast, because of a combination of increased coastal development, natural climate cycles, reductions in air pollution and man-made climate change, experts say.
CNN)While commercial labs across the country have pushed hard this year to scale up their coronavirus testing capacity, the number of tests they conduct each week has fallen over the last month.
CNN)A sudden change in federal guidelines on coronavirus testing came this week as a result of pressure from the upper ranks of the Trump administration, a federal health official close to the process tells CNN.
JOHANNESBURG (AP) — Winter is ending in the Southern Hemisphere and country after country -- South Africa, Australia, Argentina -- had a surprise: Their steps against COVID-19 also apparently blocked the flu.
The C.D.C. changes testing guidelines to exclude those exposed to virus who don’t exhibit symptoms.
The Centers for Disease Control and Prevention quietly modified its coronavirus testing guidelines this week to exclude people who do not have symptoms of Covid-19 — even if they have been recently exposed to the virus.
Experts questioned the revision, pointing to the importance of identifying infections in the brief window immediately before the onset of symptoms, when many individuals are thought to be most contagious.
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