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

9/11 Survivors Still Struggling With Health Problems: Report

Many survivors of the Sept. 11 terrorist attacks on the World Trade Center are still suffering respiratory problems and psychological symptoms, according to a new government study.

About 62 percent of the survivors were enveloped in the dust, smoke and debris spewed into the air as the towers collapsed, the U.S. Centers for Disease Control and Prevention report released Friday said.

About 57 percent reported new or worsening respiratory problems after the attacks, and 21 percent have had severe headaches, the agency said according to a Bloomberg report.

More than 64 percent said they were depressed, anxious or had other emotional problems; almost 11 percent were in severe psychological distress at the time they were interviewed, the Daily News reported.

The collapse released particles of concrete, glass, plastic and paper into the air; fires at the 16-acre pile of rubble burned for about 3 months, and many people inhaled the fumes when they returned to work in lower Manhattan, the CDC report said.

Between Sept. 5, 2003, and Nov. 20, 2004, the city Health Department interviewed 71,437 who had been affected by the attacks in 2001. The CDC then sampled data from 8,418 people on the registry — excluding those involved in rescue and recovery efforts.

The government plans to periodically monitor the physical and mental health of the 71,437 people for 20 years as part of its World Trade Center Health Registry program.

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Norovirus Outbreak Kills 3 at Washington Retirement Home

A third person died Friday from a viral outbreak at a retirement center in Vancouver, Wash., which has so far sickened more than 55 residents and workers, authorities said.

Forty residents and 19 staff members of the Cascade Inn were affected by the norovirus. Nine people have been hospitalized, Clark County health officials said, according to the Associated Press.

The first patient died late Wednesday and the second Thursday morning.

All three deaths involved elderly residents with other underlying medical conditions, health officials said.

The 180 residents of the Cascade Inn have been asked to remain in their rooms and their friends and families are being urged not to visit them. All social activities have been cancelled, the reported.

Norovirus is common and includes symptoms such as diarrhea, nausea and vomiting.

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Silicone Implants Linked to High Platinum Levels in Women: Study

High and potentially dangerous levels of the metal platinum were found in the bodies of women who’d had silicone gel breast implants for many years, according to research published this week in the journal Analytical Chemistry, published by the American Chemical Society.

The seo tips findings were released just as the U.S. Food and Drug Administration appears poised to allow silicone implants back on the market, the Washington Post reported.

Platinum is used in the implants as a catalyst to transform the silicone into a gel-like form.

The study found high levels of platinum salts in the hair, urine and breast milk of 16 women who’d had silicone gel implants for an average of 14 years. The researchers concluded that the platinum in the women’s bodies was in a form that made it a potential source of toxic or severe allergic reactions.

The seo services FDA is “carefully reviewing the article, and we don’t know how long that will take,” spokeswoman Susan Cruzan told the Post.

Last student loan calculator year, the agency deemed two applications to sell silicone gel implants to be “approvable,” but the FDA has not