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HealthGetting sick from Omicron protects vaccinated individuals against a wide range of variants better than a booster, studies find
By Colin LodewickMay 16, 2022
COVID-19 test site
HealthCOVID-19 testing has dropped as much as 90% worldwide, making it tougher for scientists to spot new variants
By Laura Ungar and The Associated PressMay 10, 2022
A medical worker takes nucleic acid samples for a citizen at a nucleic acid sampling site in Yantai, East China's Shandong Province, April 26, 2022. The epidemic in Yantai was caused by the omicron variant strain.
HealthIt’s wrong to think Omicron is milder than previous COVID variants, study suggests
By David MeyerMay 5, 2022
HealthNew immune-evading Omicron variants BA.4, BA.5 are likely in every U.S. state, an expert says. Here’s where they’ve been identified so far
By Erin PraterMay 2, 2022
HealthOmicron sublineages can evade antibodies from earlier infections
By BloombergMay 1, 2022
HealthBA.4 and BA.5, two new Omicron variants sweeping South Africa, detected in U.S.
By Erin PraterApril 30, 2022
HealthEurope won’t have an Omicron-adapted mRNA vaccine until at least autumn
By Christiaan HetznerApril 27, 2022
COVID-19 testing in San Diego
HealthMore than half of Americans have COVID antibodies from a prior infection, CDC data show
By BloombergApril 26, 2022
Aerial view of the hands of a scientist at work
HealthCan you catch COVID-19 twice in 20 days? A Spanish health care worker did, suggesting previous infections offer little protection against Omicron
By Sophie MellorApril 21, 2022
HealthHere are the COVID subvariants behind the latest rise in cases—including the most contagious strain dominating the country
By Andrew MarquardtApril 16, 2022
HealthThe COVID wave America doesn’t care about: ‘Everybody is sick of COVID’
By Erin PraterApril 16, 2022
COVID-19 cases in New York State
HealthTwo new highly infectious Omicron subvariants are driving up COVID cases in New York
By Madison Muller and BloombergApril 14, 2022
Young girl gets Pfizer COVID vaccine
HealthPfizer says a third vaccine dose boosts antibodies against Omicron in kids 5 to 11
By Robert Langreth and BloombergApril 14, 2022
Lab technician Alejandra Sanchez works in the Emergency Department at Providence St. Mary Medical Center.
HealthA more contagious variant of Omicron is sweeping across America, but it doesn’t come close to the original’s severity
By Colin LodewickApril 14, 2022
Woman wears a mask
HealthCDC to extend travel mask requirement for 2 weeks
By Zeke Miller and The Associated PressApril 13, 2022
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