Here are some of the latest health and medical news developments, compiled by the editors of HealthDay:

Health Insurance Marketplace Premiums Will be Competitive: Studies

There will be numerous options for Americans trying to find lower insurance premiums under the health care law, according to two independent private studies.

Government tax credits would lower the cost of a benchmark "silver" policy to about $190 a month for a single person who earns about $29,000 a year, regardless of their age, says a study by the nonprofit Kaiser Family Foundation, the Associated Pressreported.

Some younger people who combine their tax credit with a basic "bronze" policy could reduce their premiums to between $100 and $140 a month, and older people could lower their monthly fees to well below $100 if they opt for higher deductibles and co-payments, according to the Kaiser study.

A study by the private data analysis firm Avalere Health averaged the costs of policies with different levels of coverage. Without tax credits, premiums for a "silver" plan would be about $270 a month for a 21-year-old, close to $330 a month for a 40-year-old, and $615 for a 60-year-old, the APreported.

Beginning Oct. 1, people who don't have health insurance through work will be able to use new online insurance markets to compare private plans and learn if they qualify for a tax credit. About 4 of 5 people in the new markets will be eligible for some degree of tax credit.

As of Jan. 1, nearly all Americans will need to have coverage or face fines.

The insurance marketplace will be competitive, but there will be significant price differences among age groups, states and even within states, according to Caroline Pearson, a vice president of Avalere and lead author of the company's study.

"We are seeing competitive offerings in every market if you buy toward the low end of what's available," Pearson told the AP. But for uninsured people who currently don't paying health insurance premiums, "this is still a big cost that they're expected to fit into their budgets," she added.

-----

Chobani Greek Yogurt Recalled

A mold problem has prompted Chobani to recall some of its Greek yogurt cups. The recall comes a week after the company first started telling stores to pull the products from shelves because some cups were "swelling and bloating."

The company had previously said it wasn't issuing a formal recall, but the U.S. Food and Drug Administration said Wednesday that it was discussing the issue with the company, the Associated Pressreported.

Some consumers said they became ill after eating the yogurt, but Chobani CEO Hamdi Ulukaya did not reveal exactly how many reports of illnesses the company received.

Ulukaya told the APthat the problem was caused by a type of mold at its plant in Idaho that is commonly found in dairy environments, and added that the issue has been "totally fixed."

-----

Rare Brain Disease Kills N.H. Man, Others May be at Risk

A man in New Hampshire has died from a rare, degenerative brain disease and other people may be at risk, according to state health officials.

They said the victim died of sporadic Creutzfeldt-Jakob Disease Wednesday at the Catholic Medical Center in Manchester. The patient had brain surgery at the hospital in May and was later readmitted with signs of rapidly progressing dementia, CBS News/Associated Pressreported.

One way that the disease spreads is through surgical tools that haven't been sterilized for the protein that causes the disease. The same surgical tools used on the man who died were also used on eight other patients at the hospital. In addition, five people outside of New Hampshire may be at risk because the tools used at the hospital were rented elsewhere.

While it's unlikely that other patients will contract the brain disease, officials say it is possible, CBS/APreported.