Richard Harris

Richard Harris appears in the following:

How Herd Immunity Works — And What Stands In Its Way

Thursday, February 18, 2021

Scientists say the pandemic will only end in the U.S. when we achieve what's called herd immunity. Play with our simulations to see how immunity can stop an outbreak in its tracks.

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Long-Term COVID-19 Vaccine Studies Hampered As Placebo Recipients Get Real Shot

Wednesday, February 17, 2021

Scientists are trying to learn more about COVID-19 vaccines from original study participants. That quest is hampered because many people who received a placebo shot have now opted to get the vaccine.

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COVID-19 Vaccines Could Add Fuel To Evolution Of Coronavirus Mutations

Wednesday, February 10, 2021

COVID-19 vaccines appear to work against the new coronavirus strains, though scientists are warily watching a variant first seen in South Africa. Vaccines may need updates to keep pace with the virus.

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Vaccines Could Drive The Evolution Of More COVID-19 Mutants

Tuesday, February 09, 2021

Mutant coronaviruses can make vaccines less effective. At the same time, vaccines can contribute to virus mutations, but this is a slow process that should be manageable.

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A Rocky Road On The Way To Herd Immunity For COVID-19

Wednesday, February 03, 2021

At least 70% of people will need to be immune from the coronavirus before COVID-19 can recede through a process known as herd immunity. Vaccines can play a role. But reaching the goal won't be easy.

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After A Year Battling COVID-19, Drug Treatments Get A Mixed Report Card

Friday, January 22, 2021

Drugs for COVID-19 are sorted into three basic categories: They work, they don't work, or there simply isn't enough information to know. A generic steroid is one medicine that proved helpful.

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3 Questions And The Emerging Answers About COVID-19 Vaccine Protection

Monday, January 18, 2021

First, can someone who has been vaccinated still spread the disease? Second, will the vaccine remain effective as the virus itself evolves? And third, how long will the vaccine's protection last?

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Immune System Studies Help Answer Questions About COVID-19 Vaccine

Friday, January 15, 2021

There are many questions remaining about COVID-19 vaccines, such as how long protection will last and whether vaccinated people can spread the virus. Immunologists are working hard to get the answers.

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Tracking Down Antibody Treatment Is A Challenge For COVID-19 Patients

Monday, January 11, 2021

Antibody-based drugs that bind to the coronavirus to prevent it from invading cells can help patients with mild to moderate COVID-19. But the medicines can be tough to find in time.

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Doctors Encouraged By Antibody Treatments For COVID-19

Wednesday, January 06, 2021

While logistical challenges have hampered use of antibody drugs to treat people with mild-to-moderate COVID-19, recent results show the medicines can be worthwhile.

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Doses Of Antibody Drugs Remain Unused As They Present Various Challenges

Tuesday, January 05, 2021

Monoclonal antibody drugs for COVID-19 with mild to moderate symptoms are not widely used, in part because doctors aren't sure they work. New data could provide more confidence in these drugs.

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Why The COVID-19 Vaccine Distribution Has Gotten Off To A Slow Start

Friday, January 01, 2021

The rollout of vaccines for COVID-19 has been slower than expected. Reasons include local logistics, lack of funding and staffing struggles during the winter holidays.

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1st Known U.S. Case Of U.K. Coronavirus Variant Found In Colorado

Wednesday, December 30, 2020

Colorado health officials found the variant of COVID-19 that spreads faster than the common strain. U.K. scientists identified the strain last week. It has spread in the U.K. and to other countries.

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Low Demand For Antibody Drugs Against COVID-19

Tuesday, December 22, 2020

Monoclonal antibodies to prevent severe COVID-19 aren't being used as widely as expected. Medical staff shortages and patient transportation problems are two of the reasons.

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Latest On FDA Authorization For Moderna's COVID-19 Vaccine

Friday, December 18, 2020

The Food and Drug Administration says it will soon grant emergency authorization to Moderna's COVID-19 vaccine. NPR shares the latest news.

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Oxygen-Detecting Devices Give Misleading Readings In People With Dark Skin

Wednesday, December 16, 2020

Common devices to measure oxygen in the blood don't work as well in people with darker skin, according to a new study. They are useful, but experts warn readings should be interpreted more carefully.

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Devices Used In COVID-19 Treatment Can Give Errors For Patients With Dark Skin

Wednesday, December 16, 2020

Fingertip devices that measure oxygen in the blood can sometimes give erroneous readings in people with dark skin, doctors report. The devices can say oxygen levels are normal when they're not.

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FDA Approves Pfizer's COVID-19 Vaccine For Distribution

Monday, December 14, 2020

Pfizer may now start shipping the inoculation to hospitals across the country. Health care workers and people in nursing homes and assisted living centers will be given priority for the vaccine.

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COVID-19 Vaccine's Side Effects Could Complicate Efforts To Vaccinate Health Workers

Friday, December 11, 2020

Pfizer's COVID-19 vaccine may have side effects that can sometimes knock people out of work for a day or so. Hospitals are planning vaccine campaigns for their workers to avoid staff shortages.

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What To Expect From FDA Advisory Committee's COVID-19 Vaccine Meeting?

Thursday, December 10, 2020

A Food and Drug Administration advisory committee is preparing to vote on whether to recommend Pfizer's COVID-19 vaccine for emergency use in the United States.

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