An experimental drug has shown encouraging results in treating advanced breast cancer in an early clinical trial, pharmaceutical giant Pfizer reported Sunday.

Pfizer, the world's second largest drugmaker, said the drug prevented breast cancer from worsening for 20.2 months in a trial involving 165 patients. Current medications do so for 10.2 months. The drug, known as palbociclib, is among a new class of cancer drugs that target specific proteins to block tumors.

Authorities launched a massive polio vaccination campaign on Sunday in Iraq, Syria and Egypt after health officials found a suspected case of the virus in a young boy near Baghdad.

The five-day campaign aims to vaccinate more than 20 million children, including 5.6 million in Iraq alone, UNICEF said, with confirmed cases in conflict-hit neighboring Syria having sparked a region-wide alert.

Cage after cage, oysters destined for a sprinkling of lemon juice and a delighted diner are pulled from the majestic Chesapeake Bay, where 20 years ago they had nearly disappeared.

"Those will be at the restaurants tomorrow," says Tal Petty, 55, an oysterman who has worked these waters for 40 years.

A dark cloud is menacing the cherished U.S. summer season of outdoor grilling: a deadly pig virus that has been sweeping through farms and driving up pork prices.

The porcine epidemic diarrhea (PED) virus was first officially detected in the United States in May 2013. Now it is active in 27 of the nation's 50 states.

Minister of Health Wael Abou Faour stated that the Rafik Hariri University Hospital could be closed if the state did not take the necessary measure to counter that threat, An Nahar daily reported on Friday.

“The hospital is literally dying and the state is facing one of two options to either transform it into a real hospital or close it,” Abu Faour said.

Friends and family will be able to take the first step to save a loved one from an overdose of heroin or powerful painkillers called opioids.

The Food and Drug Administration on Thursday approved an easy-to-use device that automatically injects the right dose of an overdose antidote named naloxone before an ambulance arrives. Doctors could prescribe it for family members or caregivers to keep on hand, in a pocket or a medicine cabinet.

A pack of South African condoms are pictured on June 14, 2004 in Benoni

South Africa is seeking to rebrand its free condoms to appeal to young people after a new study showed rising HIV infections and flagging contraception use, the health department said on Thursday.

It was with a heavy heart, and some panic, that Britons digested new advice this week that their struggle to eat enough fruit and vegetables had just got harder.

Over the past decade, Britain has absorbed if not adopted the idea of five a day, the target endorsed by the state-run National Health Service (NHS) for a healthy, balanced diet.

Researchers unveiled a high-resolution "map" Wednesday of gene activity in a human foetus brain, which they said should lead to better understanding of developmental disorders such as autism.

The blueprint, compiled with the donated brain tissue of four foetuses 15 to 21 weeks post conception, shows which of some 20,000 genes are active in any given area of the brain at different periods of development.

Three out of four Americans believe marijuana will one day be legal to buy and use anywhere in the United States, according to a public opinion poll released Wednesday.

Fifty-four percent of respondents to the Pew Research Center survey said marijuana should be legalized, compared to 42 percent who were opposed, the Washington-based pollsters reported.