Shen Wu Tan

Unvaccinated people who had COVID-19 more likely to get reinfected, CDC says

Unvaccinated people who were previously infected with COVID-19 were about twice as likely to be reinfected than those who were fully vaccinated after they got the virus, according to a new study by the Centers for Disease Control and Prevention.

August 6, 2021

China subjected US diplomats to anal swabs to test for COVID-19, conservative group says in lawsuit

A conservative group on Friday said it filed a lawsuit against the State Department to obtain records of U.S. diplomats who were forced to undergo "invasive COVID-19 anal swab tests" by the Chinese government.

August 6, 2021

Low to moderate risk for earthquake in this region, despite recent shake in Maryland, experts say

Geological experts say the risk of earthquakes for Maryland and Virginia remains low to moderate following a small earthquake in Clarksville and ahead of the upcoming 10th anniversary of a larger earthquake in Virginia, although they note the science still cannot predict when earthquakes will happen or how strong they will be.

August 6, 2021

Maryland, Virginia mandating COVID-19 shots or regular testing for state workers

Both Maryland and Virginia will require state workers to show proof of COVID-19 vaccination or undergo regular coronavirus testing, the states' governors announced Thursday.

August 5, 2021

Boil water advisory in place for some D.C. Northeast neighborhoods

D.C. Water issued a boil water advisory for some Northeast neighborhoods early Thursday due to the possibility of higher levels of E. coli bacteria.

August 5, 2021

40% of wild deer have coronavirus antibodies: study

Scientists have found that 40% of wild deer in parts of the U.S. had neutralizing antibodies for the coronavirus, suggesting COVID-19 spread from humans in what is reportedly the first documentation of widespread exposure to the virus in free-roaming animals.

August 4, 2021

Microsoft mandating employees to get their COVID-19 shots

Microsoft will start requiring COVID-19 vaccinations for its employees in its U.S. offices starting in September, according to a news report.

August 3, 2021

California officials warn of plague risk after reports of infected chipmunks

Officials are warning California residents of a plague risk in parts of South Lake Tahoe after chipmunks were identified as being infected with a pathogen that causes the disease.

August 3, 2021

Broadway theaters mandating COVID-19 vaccinations, face masks

All 41 Broadway theaters in New York will require vaccinations for all audience members, performers, theater staff and backstage crew through October.

July 30, 2021

Vaccinated people make up 74% of COVID-19 cases linked to events in Massachusetts town, report says

Three-quarters of patients who tested positive for COVID-19 after numerous large public events in a Massachusetts town were fully vaccinated, according to a federal study published Friday.

July 30, 2021

D.C. to require masks indoors regardless of vaccination status

D.C. Mayor Muriel Bowser said Thursday she will issue a directive for people ages 2 and older to wear masks indoors regardless of their vaccination status to curb rising COVID-19 infections.

July 29, 2021

What experts know about COVID-19 vaccine breakthrough infections

Breakthrough infections -- fully vaccinated people testing positive for COVID-19 -- seem to be cropping up everywhere, from the Tokyo Olympic Games to the White House and Congress.

July 29, 2021

Veterinarians face high demand to treat pets amid adoption boom, staff shortages

Veterinarians in the U.S. are wrangling with a heightened demand for their services as older animal doctors retire and fewer are graduating to replenish the ranks.

July 27, 2021

Scientists discover water vapor in atmosphere of Jupiter’s largest moon

Astronomers for the first time detected water vapor in the atmosphere of Jupiter's largest moon, Ganymede, NASA announced Monday.

July 27, 2021

Virginia officials recommend schools require face masks

Virginia officials are recommending that schools put in place face mask mandates for their students and staff as schools prepare to open their doors this fall.

July 21, 2021

U.S. life expectancy in 2020 saw biggest drop since World War II

U.S. life expectancy declined by 1.5 years from 2019 to 2020, the largest one-year dip since World War II and the lowest level since 2003, according to new provisional federal data.

July 21, 2021

1.5 million children lost caregiver from COVID-19 linked death, study shows

More than 1.5 million children worldwide had at least one caregiver die from a COVID-19-related cause during the first 14 months of the pandemic, researchers estimate in a new study.

July 20, 2021

CDC, Texas officials confirm case of human monkeypox in a U.S. resident

Health officials on Friday warned about a case of human monkeypox in a U.S. resident who recently returned from Nigeria, and said they're tracing the person's contacts on two flights.

July 16, 2021

FDA prioritizing review for Pfizer-BioNTech COVID-19 vaccine approval, companies say

The Food and Drug Administration has granted priority review for the approval of the Pfizer-BioNTech COVID-19 shots for people aged 16 years and older, the vaccine makers said Friday.

July 16, 2021

Canada eyes opening border to fully vaccinated Americans in mid-August

Fully vaccinated Americans could be allowed to cross into Canada for non-essential travel as soon as mid-August, Prime Minister Justin Trudeau announced Thursday.

July 16, 2021