COVID-19 updates: Anti-vaccine protesters halt vaccinations at Dodger Stadium

Demonstrators carrying anti-mask and anti-vaccine signs blocked the entrance.

A pandemic of the novel coronavirus has now infected more than 102.5 million people worldwide and killed over 2.2 million of them, according to real-time data compiled by the Center for Systems Science and Engineering at Johns Hopkins University.


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South Carolina confirms its 1st case of UK variant

An adult in South Carolina’s Lowcountry region has become the state’s first confirmed case of the United Kingdom COVID-19 variant, South Carolina’s Department of Health and Environmental Control said.

The person "has an international travel history," the department said.

The U.S. has confirmed at least 434 cases of the B.1.1.7 U.K. variant across 30 states, South Carolina officials said.

"Experts agree that existing vaccines work to protect us from this variant, even if we don’t know just how effective they are," the South Carolina officials said. "At this time, there’s no conclusive evidence to prove that the B.1.1.7 variant causes more severe illness."

ABC News’ Josh Hoyos contributed to this report.


Coachella, Stagecoach canceled

The Coachella Valley Music and Arts and Stagecoach Country Music festivals, set for April, were canceled on Friday by Dr. Cameron Kaiser, health officer for Riverside County, California.

Riverside County’s positivity rate stands at 20%. The county has 0% bed availability in its intensive care units.


US surpasses 90,000 deaths in January

January has been the deadliest month since the pandemic began, with 90,844 total deaths, according to data compiled by Johns Hopkins University.

The U.S. coronavirus death toll stands at 436,810 -- with the Center for Disease Control and Prevention projecting that more than 77,000 deaths could be reported by Feb. 20.


Brazil variant detected in California

California is now the second U.S. state with known detection of the Brazil P.1 variant.

Minnesota health officials confirmed earlier this week the nation's first known COVID-19 case associated with the variant.

Inside Stanford's Clinical Virology Laboratory, Dr. Benjamin Pinsky and his team found two strains of the virus: the Brazil strain and the U.K. strain, KGO reported Saturday morning.

"It's in about 17% of the samples that we've sequenced," Pinsky told KGO.


J&J single-shot vaccine 85% effective against severe COVID-19 disease

In another promising development for vaccine science, Johnson & Johnson announced Friday that its COVID-19 vaccine -- a single shot tested against a complex barrage of newly emerged variants of the virus -- is 66% effective at preventing symptomatic disease and 85% effective against preventing severe illness.

The U.S. pharmaceutical giant said the vaccine is also safe to take. Volunteers experienced mild reactions after the shot, with less than 10% experiencing fever, according to a company press release.

The full data package will be made publicly available and will be evaluated by the FDA's advisory committee sometime in mid- to late February.

The Food and Drug Administration has said it will consider a vaccine that's more than 50% effective, and the Johnson & Johnson vaccine exceeds this threshold. An emergency use authorization could be given and people could start receiving shots before the end of February.

ABC News' Sony Salzman contributed to this report.