One of the biggest worries for patients undergoing cancer surgery is whether surgeons will miss some of the diseased tissue.

A scandal involving eggs tainted by the insecticide fipronil has spread to 45 countries worldwide, including 19 beyond the European Union where the scare began, a top EU official said Tuesday.

Daily aspirin use -- known to reduce the risk of colon cancer -- could also make the disease harder to treat if it does occur, researchers reported Wednesday. 

A four-year old girl has died of malaria after apparently contracting the disease in northern Italy in a case that has perplexed the medical world, doctors said Tuesday.

"I've never seen a case like it, it's a mystery. It shouldn't have been possible for her to get malaria," Claudio Paternoster, head of the infectious diseases department at the Santa Chiara hospital in Trento, told AFP.

No guns, no pets, no smoking: these are the rules at the Red Cross shelter in Winnie, Texas. Yet as super storm Harvey forces more and more Americans to flee their homes, few are complaining.

In this small town, a school cafeteria has been transformed into a clean, dry resting place for more than 400 people who may need it. Brisket with baked beans and potato salad was offered for dinner.

Recalls of unsafe food products often reach consumers too late or not at all, the campaign group Foodwatch said Thursday, calling for tighter oversight after a Europe-wide scare erupted over insecticide-tainted eggs.

McDonalds says it will start globally rolling back use of antibiotics in its chicken products from 2018 as part of efforts to curb microbial resistance to drugs and the rise of superbugs.

Australian researchers have reported a major breakthrough in the relief of deadly peanut allergy with the discovery of a long-lasting treatment they say offers hope that a cure will soon be possible.

Cholera is believed to have affected more than 500,000 people and killed nearly 2,000 since late April, the World Health Organization said Monday.

At least 60 children have died over five days at a government hospital in northern India that suffered oxygen shortages, officials said Saturday amid fears the toll could rise.