After years of trials, the vaccine has shown potential to save tens of thousands of children's lives.

A new cough, fever and change in smell or taste are the key symptoms of coronavirus.

US doctors are hoping to start offering women vaginal fluid transplants and have set up a programme to screen potential donors. They believe some women could benefit from a dose of healthy vaginal microbes to protect against an infection called bacterial vaginosis (BV).

It's a numbers game... if some people are not vaccinated, it can cause a big problem for us all Public mistrust of vaccines means the world is taking a step backwards in the fight against deadly yet preventable infectious diseases, warn experts.

HIV was no longer detected in the patient's body after the transplant A UK patient's HIV has become "undetectable" following a stem cell transplant - in only the second case of its kind, doctors report in Nature. The London patient, who was being treated for cancer, has now been in remission from HIV for 18 months and is no longer taking HIV drugs.

Claudia Campanella, 31, works as a student support administrator at a UK university, and in her spare time she is a poo donor. "Some of my friends think it is a bit weird or disgusting, but it doesn't worry me. It's very easy to donate and I just want to help with medical research. I'm glad to contribute." Her faeces, teeming with "good" bugs, will be put into the bowel of a sick patient to help t

Around the world, children are far more likely than ever before to develop food allergies. Inquiries into the deaths of British teenagers after eating buttermilk, sesame and peanut have highlighted the sometimes tragic consequences. Last year, a six-year-old girl in Western Australia died as the result of a dairy allergy. The rise in allergies in recent decades has been particularly noticeable in

Two scientists who discovered how to fight cancer using the body's immune system have won the 2018 Nobel Prize for physiology or medicine. The work, by Professor James P Allison from the US and Professor Tasuku Honjo from Japan, has led to treatments for advanced, deadly skin cancer. Immune checkpoint therapy has revolutionised cancer treatment, said the prize-giving Swedish Academy.

More than half of your body is not human, say scientists. Human cells make up only 43% of the body's total cell count. The rest are microscopic colonists. Understanding this hidden half of ourselves - our microbiome - is rapidly transforming understanding of diseases from allergy to Parkinson's.

A baby born with her heart outside her body has survived after surgery at Glenfield Hospital in Leicester. Vanellope Hope Wilkins, who has no breastbone, was delivered three weeks ago by Caesarean section.

Peter has Huntington's disease and his siblings Sandy and Frank also have the gene The defect that causes the neurodegenerative disease Huntington's has been corrected in patients for the first time, the BBC has learned.

The family lives in a remote village in western Democratic Republic of Congo, in Africa Conjoined twins born in a remote village in the Democratic Republic of Congo have survived a 15-hour journey on the back of a motorbike to be separated. They were then flown to the capital, Kinshasa, where they were operated on by a team of volunteer surgeons.

Scientists have, for the first time, successfully freed embryos of a piece of faulty DNA that causes deadly heart disease to run in families. It potentially opens the door to preventing 10,000 disorders that are passed down the generations.

Girls as young as nine are seeking surgery on their genitals because they are distressed by its appearance, the Victoria Derbyshire show has been told. Dr Naomi Crouch, a leading adolescent gynaecologist, said she was concerned GPs were referring rising numbers of young girls who wanted an operation. Labiaplasty, as the surgery is known, involves the lips of the vagina being shortened or reshaped.

Jimmy Isaacs, 28, can look forward to a long and healthy life on HIV drug treatment Young people on the latest HIV drugs now have near-normal life expectancy because of improvements in treatments, a study in The Lancet suggests. Twenty-year-olds who started antiretroviral therapy in 2010 are projected to live 10 years longer than those first using it in 1996, it found. Doctors say that starting tr

Smoking leaves an "archaeological record" of the hundreds of DNA mutations it causes, scientists have discovered. Having sequenced thousands of tumour genomes, they found a 20-a-day smoker would rack up an average of 150 mutations in every lung cell each year. The changes are permanent, and persist even if someone gives up smoking. Researchers say analysing tumour DNA may help explain the underlyi

Milk from Tasmanian devils could offer up a useful weapon against antibiotic-resistant superbugs, according to Australian researchers. The marsupial's milk contains important peptides that appear to be able to kill hard-to-treat infections, including MRSA, say the Sydney University team. Experts believe devils evolved this cocktail to help their young grow stronger. The scientists are looking to m

Scientists in the United States are trying to grow human organs inside pigs. They have injected human stem cells into pig embryos to produce human-pig embryos known as chimeras. The embryos are part of research aimed at overcoming the worldwide shortage of transplant organs. The team from University of California, Davis says they should look and behave like normal pigs except that one organ will b