Science
U.S. man recovering after 'breakthrough' pig-heart transplant
Genetically modified pig organs could help alleviate shortage of donated organs
Science
Coronavirus
Omicron variant accounts for 73% of new U.S. COVID cases
CDC data shows nearly sixfold increase in share of infections in just one week
Science
Japan joins Arctic race with 1st research icebreaker for region
$295m ship will enable full-year observation of climate change effects
Technology
SoftBank codevelops battery with twice the capacity of lithium-ion
Lithium-air technology shows promise for miniaturization of drones
COVID vaccines
Pfizer booster highly effective against omicron: study
Receiving just 2 shots offers almost no protection against COVID-19 variant
Coronavirus
South Africa says no sign yet omicron is more severe than other variants
Hospital admissions start to rise, but majority of patients are unvaccinated
Coronavirus
Genetic factor may soften COVID blow for Japanese: study
Research suggests T cells that remember cold viruses react to SARS-CoV-2
Science
Nobel laureate Yamanaka to step down as head of iPS cell lab
Kyoto University researcher plans to continue stem cell studies
Coronavirus
Omicron coronavirus variant found in multiple U.S. states
New York Mayor says geographic spread suggests domestic infections
COVID vaccines
Moderna eyes March 2022 for release of omicron booster
Existing jab has reduced efficacy against new variants, says company president
Coronavirus
1st U.S. case of omicron detected in California
Fully vaccinated person returned from South Africa on Nov. 22
COVID vaccines
Moderna chief predicts existing vaccines will struggle with omicron
Stephane Bancel foresees 'material drop' in effectiveness of current jabs against new variant
Coronavirus
Omicron poses 'very high' global risk; nations must prepare: WHO
U.N. agency warns of 'uncertainties' on degree of vaccine immunity
Coronavirus
Biden told receiving clear data on omicron variant to take 2 weeks
Fauci thinks vaccines can provide 'degree of protection' but remains cautious
Coronavirus
WHO says it's not yet clear if omicron causes more severe disease
Preliminary evidence suggests higher risk of reinfection from the variant, agency says
Coronavirus
WHO names new COVID variant omicron, cautions against travel measures
Strain shows 'detrimental change in COVID-19 epidemiology'
Coronavirus
South Africa detects new 'unusual' COVID-19 variant
Traveler brings strain to Hong Kong as scientists puzzle out implications
Technology
Japan's Fugaku retains title as world's fastest supercomputer
Four-peat achieved but U.S. and China rivals poised for top spot as soon as next year
COVID vaccines
Moderna, U.S. NIH in dispute over COVID vaccine patent rights
National institute head says its scientists deserve credit, takes case to court
Companies
Japan bedding maker measures snooze quality in new sleep lab
Romance gathers objective product data for online shoppers