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CDC officials drop controversial coronavirus guidance and say anyone who has been in close contact with an infected person should get tested.

Yes, it’s that time of year again. Here’s how and where to get a flu shot in Los Angeles and around California.

All along the West Coast, health facilities are reporting an influx of patients with breathing problems. Is it smoke inhalation or symptoms of COVID-19?

Since the COVID-19 pandemic hit, more patients are administering dialysis to themselves at home rather than receiving it in a clinic. But there are challenges.

For Black environmental scientists, worrying whether they will be harassed or asked to justify their presence during fieldwork is a familiar issue.

A new U.N. biodiversity report card highlights the decline over the past 10 years in fragile ecosystems such as coral reefs and tropical forests.

The NIH has launched an investigation into the case of a patient who suffered spinal cord damage after joining AstraZeneca’s coronavirus vaccine trial.

Astronomers detected a rare molecule called phosphine in the clouds above Venus. Scientists say it could have been created by extraterrestrial life.

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Appalled by the tidal wave of single-use plastic from takeout and more? Experts give tips for how to be eco-friendly during the COVID-19 pandemic.

Every effort to explain the extraordinarily varied course of the novel coronavirus, to treat it with drugs and prevent it with vaccines, depends on understanding how the virus outwits the human immune system — or vice versa.

Butte County has been hit with disaster after disaster. But there’s a resigned resilience among residents even as they face the North Complex fire.

A study of patients who came to UCLA clinics and hospitals to be treated for coughs suggests the coronavirus may have been in Los Angeles by Christmas.

Studies of AstraZeneca’s COVID-19 vaccine candidate are on hold while the company investigates whether a recipient’s illness is a side effect of the shot.

Obesity appears to increase the likelihood of serious complications from a coronavirus infection. Scientists are struggling to understand the link.

Top executives of nine drugmakers likely to produce the first coronavirus vaccines signed a pledge to boost public confidence in approved vaccines.

Dozens of major hospitals may ignore an FDA decision allowing use of plasma from recovered COVID-19 patients in order to focus on a clinical trial.


It’s still too soon to try to genetically edit human embryos because the science isn’t advanced enough to ensure safety, an international panel of experts says.

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