One-year-old twin girls who were born conjoined at the back of their heads have seen each other for the first time after undergoing rare separation surgery in Israel.
Read MoreIsrael's booster vaccination programme - offering a third shot to over-40s - has begun to show signs of success.
Read MoreThe EU and UK-Swedish drug-maker AstraZeneca have settled a row over a shortfall in coronavirus vaccines that affected the European rollout earlier this year.
Read MoreThe risk of "long Covid" in children is much lower than many had feared, leading child health experts have said.
Read MoreBeing fully vaccinated against Covid-19 not only cuts the risk of catching it, but also of an infection turning into long Covid, research led by King's College London suggests.
Read MoreNew Zealand has reported what it believes to be its first death linked to the Pfizer Covid-19 vaccine.
Read MorePeople are twice as likely to need hospital care if they are sick with the Delta Covid variant, rather than the Alpha variant that was once prevalent in the UK, data from England suggests.
Read MoreA major review of vaccines suggests the AstraZeneca jab does raise the risk of blood clots and another serious condition that can cause bleeding.
Read MoreEngland saw a rise in young adults taking up smoking during the first lockdown, according to a study.
Read MoreSome patients with impaired immune systems have a low or absent antibody response after receiving two doses of Covid vaccine, a UK study has found.
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