France's health minister says tests on three suspected cases of a deadly new respiratory virus related to SARS are negative — but a fourth needs complementary tests and a fifth suspected case has been discovered.

Marisol Touraine said test results of the two remaining suspicious cases — people who had close contact with France's only confirmed case — should be known later Saturday.

The Food and Drug Administration says it has approved a new once-a-day inhaler drug from GlaxoSmithKline for patients with chronic lung disease.

The agency cleared the Breo Ellipta inhaler for long-term use and to control flare-ups in patients with chronic obstructive pulmonary disorder, often called smoker's cough. The lung ailment can cause a number of breathing problems, including chronic bronchitis and emphysema.

A new report says 200 people reported food poisoning symptoms after dining at one of Las Vegas' most popular restaurants.

Southern Nevada Health District data released Friday show the salmonella outbreak at the Firefly restaurant in late April was more extensive than previously thought. An earlier report showed nearly 90 people sick.

A California woman who slapped a police officer to get arrested got her wish to go to jail in hopes she can quit smoking there.

Etta Mae Lopez pleaded no contest Thursday to smacking Sacramento County sheriff's Deputy Matt Campoy earlier this week after he left the main jail at the end of his shift.

Cambodia is on track to become one of the few countries in the world to successfully reverse its HIV epidemic and may eliminate new infections by 2020, the World Health Organization said Friday.

The Southeast Asian nation has reduced its HIV prevalence rate from a 1998 peak of 1.7 percent among people aged 15-49 to 0.7 percent in 2012 across the whole population, the WHO said in a joint statement with the Cambodian health ministry.

U.S. scientists have found a way to infect mosquitoes with bacteria in order to break the chain of malaria transmission, according to research published Thursday in a leading scientific journal.

A similar approach has helped cut back on dengue in some locations, and researchers hope that the findings could offer a path toward reducing malaria among the most common mosquitoes in the Middle East and South Asia.

U.S. researchers have developed a new test to identify antibodies capable of fighting most strains of HIV, the virus that causes AIDS, in a breakthrough that could accelerate the hunt for a vaccine.

A report published in the journal Science on Thursday said that scientists at the National Institute of Allergy and Infectious Diseases had studied HIV-infected individuals whose blood had shown "powerful neutralization" qualities of the virus.

French health authorities said Thursday they feared the country's first case of a new SARS-like virus that has killed 18 people, mostly in SDaudi Arabia, may have infected two other people.

The 65-year-old man who came back to France from a holiday in Dubai was diagnosed with the deadly novel coronavirus, and is in intensive care in a hospital in the northern city of Douai, the health ministry said Wednesday.

A Food and Drug Administration investigation into the safety of caffeine-added foods has prompted Wrigley to take its new caffeinated gum off the market for the time being.

Wrigley said Wednesday that it will temporarily halt sales and marketing of Alert caffeinated gum after discussions with the FDA. President Casey Keller said the company made the move "out of respect" for the agency, which said it would investigate the health effects of added caffeine on children and adolescents just as Wrigley rolled out Alert late last month. A stick of the gum has an amount of caffeine equivalent to half a cup of coffee.

For the first time, the government is publicly revealing how much hospitals charge, and the differences are astounding: Some bill tens of thousands of dollars more than others for the same treatment, even within the same city.

Why does a joint replacement cost 40 times as much at one hospital as at another across the country? It's a mystery, federal health officials say.