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July 1, 2021

How does the Delta variant differ from original strain?

The highly transmissible Delta variant rapidly spreading in the U.S. and spurring some calls for masks regardless of vaccination status harbors over a dozen mutations, some of which are linked to vaccine escape and heightened spread from person to person, experts say.

July 1, 2021

CureVac COVID-19 vaccine hits just 48% efficacy in final analysis

German biotech company CureVac announced its COVID-19 vaccine demonstrated 48% efficacy against COVID-19 of any severity in a final readout of late-stage trial data.

July 1, 2021

WHO decision challenges West to recognize Chinese vaccines

The World Health Organization said Thursday that any COVID-19 vaccines it has authorized for emergency use should be recognized by countries as they open up their borders to inoculated travelers.

July 1, 2021

Dr. Marc Siegel: Iceland and coronavirus – island a haven from politics of fear, even as delta variant spreads

As of July 1, Iceland is removing all COVID restrictions, despite the emergence of the highly transmissible delta variant throughout Europe and on into the United States.

July 1, 2021

Delta most common COVID-19 variant in US, data show

The highly transmissible Delta variant is the most common strain of the COVID-19 virus circulating in the U.S., new data showed, but federal health officials said fully vaccinated people don't necessarily need to put on face masks again.

July 1, 2021

COVID-19 vaccines reduce viral load, severity in breakthrough cases, studies find

Fully vaccinated individuals who then go on to contract COVID-19 are likely to have milder symptoms, a shorter infection time and a lower viral load, ongoing studies suggest.

July 1, 2021

Will one dose of a two-dose COVID-19 vaccine protect me?

Experts recommend getting fully vaccinated, especially with the emergence of worrisome coronavirus mutations such as the delta variant first identified in India.

June 30, 2021

Pfizer to request COVID-19 vaccine emergency approval for kids ages 5-11 by fall

Younger children could become eligible for a COVID-19 vaccine this fall, according to a top executive at Pfizer who noted plans to request emergency approval for use of its vaccine in kids aged 5 to 11 by September or October.

June 30, 2021

Kim Jong Un berates North Korea's top officials over 'great crisis' in COVID response

North Korea's leader Kim Jong Un has berated his country's top officials for creating a "great crisis" through failures in coronavirus prevention, according to state media.

June 30, 2021

Myocarditis after COVID-19 vaccination higher in military population than expected, study finds

A greater number of heart inflammation cases cropped up among members of the U.S. military than expected following mRNA COVID-19 vaccination, a study found, though authors emphasized the benefits of the shots exceed risks of rare adverse events.