Look at the location data that Google has collected about you, and you’ll see yourself in a whole new way, writes NYT's John Herrman

Big pharma is having a big tobacco moment as litigation over opioids attract star lawyers and a growing list of US states and local governments seeking their own multi-billion payout to deal with costs of a burgeoning US drug epidemic.

Twitter has defied a US government request for records that could identify users behind an account opposed to President Donald Trump, and is challenging that order in court.

A Honduran woman infected with zika gave birth in New Jersey to a baby girl with birth defects caused by the virus, her doctor said yesterday.

US health officials say there is now enough evidence that the zika virus can cause unusually small heads and brain damage in babies.

Facebook is stepping up its efforts to fight ebola by adding a button designed to make it easier for its users to donate to charities battling the disease.

The World Health Organisation yesterday set out plans for speeding up development and deployment of experimental ebola vaccines, saying hundreds of thousands of doses should be ready for use in West Africa by the middle of 2015.

The WHO chief wasn’t told of the scale of the crisis until three months after it was detected and bureaucratic messes delayed deployment of vital aid, write Jason Gale and John Lauerman

An American aid worker infected with the deadly ebola virus while in Liberia was being treated at an Atlanta hospital in a special isolation unit yesterday.

Scientists are worried about the amount of carbon dioxide in the atmosphere and how fast it continues to build without showing any sign of slowing, writes James Warner

Experts have downplayed fears of a new virulent strain of gonorrhoea “being worse than Aids”, but have admitted that the sexually transmitted infection is becoming increasingly resistant to antibiotics.

New York City’s limit on the size of sugary drinks is an “extraordinary infringement” on consumer choice, said a lawyer for the American Beverage Association and other critics in court yesterday.

A new strain of the winter vomiting disease norovirus has spread to France, New Zealand, and Japan from Australia and is set to become the dominant strain in Britain.

McDonald’s is to begin posting calorie information on menu boards at its US stores next week as it works to stem criticism that its food causes obesity.

Mr Waugh in his recent letter on the link between fluoride and atherosclerosis (Letters, Jul 23) fails to point out that the fluoride involved in this study was part of a whole-body sodium fluoride dose administered by intravenous injection in nuclear medicine for the treatment of cancerous tumours.

THOUSANDS of people exposed to choking dust after the destruction of the World Trade Centre twin towers in New York have developed asthma, a study has shown.

The number of Americans infected by the Aids virus each year is much higher than the government has been estimating, US health officials reported today, acknowledging that their numbers have understated the level of the epidemic.

ACROSS miles of ravaged neighbourhoods of clapboard houses, grand estates and housing projects, workers struggled to find corpses and persuade the city’s last stubborn residents to leave.

The discovery of a new virus in two Wisconsin babies thought to be victims of sudden infant death syndrome has triggered questions about how often such mysterious tragedies might be due to infection.

Three people died of rabies after receiving infected organs from the same donor in what the US government says are the first documented cases of the disease being spread through transplants.

THE World Health Organisation has warned that a highly contagious and deadly pneumonia-like illness of unknown cause is fast becoming a worldwide health threat.

The number of babies born with HIV has fallen by 80% in the last decade in what is being hailed as one of the biggest successes in the fight against Aids.

Preliminary tests have found no evidence of anthrax on the personal mail, mailbox or post office of an elderly Connecticut woman who mysteriously died of the bacterium.

This is the how the terrorism disaster has unfolded so far today.. All times are local US times, five hours behind Irish time.

This is the how the terrorism disaster has unfolded on Tuesday, Sept 11. All times are local US times, five hours behind Irish time.