US CDC backs use of redesigned Omicron Covid boosters
The green light for the use of redesigned Omicron Covid boosters will enable millions of the retooled shots to roll out as part of a nationwide revaccination campaign.
Philippines starts rollout of second booster dose against Covid
Nearly 61% of the Philippines' 110 million population have been vaccinated, while nearly 13 million people have received first booster doses, government data shows.
Pfizer-BioNTech say booster dose increases protection vs Omicron in kids aged 5-11
Blood serum analysis of 30 paediatric participants who received a booster dose in a study showed a 36-fold increase in Omicron neutralising antibodies, the drugmakers say.
South Korea to expand rollout of second Covid booster shot to people over 60
The Omicron-induced surge in cases appears to have peaked, with the daily infections falling to a third of the record figures marked in mid-March.
No evidence to support widespread use of fourth Covid shot, EU agencies say
But they recommend a second booster for people aged 80 and above.
Second booster shields elderly from Covid but protection wanes quickly, study shows
The second booster's protection against infection dwindled after four weeks, Israeli researchers say.
Moderna seeks US approval of second Covid booster
The request comes days after Pfizer-BioNTech, makers of the other Covid mRNA vaccine, also requested emergency approval for a second booster shot, but their request was limited to adults aged 65 and older.
Australians told to get boosters amid Covid threat from new Omicron strain
Australia battled record cases and hospitalisation rates during the initial Omicron wave, but they have steadied over the past six weeks.
South Korea to start giving fourth doses of Covid vaccine by month-end
High-risk groups will be the first to get the fourth dose, in effect a second booster shot, Health Minister Kwon Deok-cheol says in a Covid-19 response meeting.
New data finds AstraZeneca booster generates higher antibodies against Omicron
The data is the first released by the company from its trials into boosters of its vaccine.
India to give Covid-19 booster shots to healthcare workers from Jan 10
India has reported a swift rise in Omicron cases, with the number reaching 415 overall across 17 Indian states.
UK study finds mRNA Covid-19 vaccines provide biggest booster impact
The study shows that booster shots help generate a broad T-cell response against the Beta and Delta variants, which may play a key role in longer-term protection.
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