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

Ground Beef Products Recalled for Possible Contamination

About 50,000 pounds of ground beef products that may be contaminated with potentially deadly E. coli O157:H7 have been recalled by Kansas-based National Beef Packing Co.

The problem was discovered through routine monitoring by the U.S. Department of Agriculture's Food Safety and Inspection Service (FSIS). The agency and the company have not received any reports of illnesses associated with the products.

The recall covers 10-lb. chubs of:

  • "National Beef" 93/ 7 fine ground beef, product code 0707
  • "NatureSource" 80/20 fine ground chuck, product code 7031
  • "NatureSource" 85/15 fine ground beef, product code 7054
  • "NatureSource" 90/10 fine ground beef, product code 7344
  • "NatureSource" 93/ 7 fine ground beef, product code 7004
  • "NatureWell" 80/20 fine ground chuck, product code 7484
  • "NatureWell" 85/15 fine ground beef, product code 7454
  • "NatureWell" 90/10 fine ground sirloin, product code 7577
  • "NatureWell" 93/7 fine ground beef, product code 7404

All the products bear the establishment number "EST. 208A" inside the USDA mark of inspection. The products were produced on July 18 and shipped in 40- to 60-lb. cases to retailers, wholesalers and food service distributors nationwide, the FSIS said.

E. coli O157:H7 can cause bloody diarrhea, dehydration and, in the most severe cases, kidney failure. The very young, seniors and persons with weak immune systems are the most susceptible to foodborne illness, FSIS said.

Consumers should contact their doctor if they are concerned about possibly having eaten contaminated beef. They can also call 1-866-761-9472 or go to National Beef Packing's websitefor details about the recall and the company's return and reimbursement policy.


Bill Would Make Anti-Allergy Drug Available in Schools

Legislation to make life-saving medicine available in schools to treat severe allergic reactions in students with food allergies was passed Tuesday by the U.S. House of Representatives.

The bill would provide grant preferences to states that implement policies to provide epinephrine in schools, CBS News/Associated Pressreported.

In addition, the bill encourages schools to permit trained administers to give epinephrine to students believed to be having a severe allergic reaction and requires states to review their liability laws to ensure that the administrators have sufficient legal protections when they assist students.

The issue gained media attention this week with the sudden death of 13-year-old Natalie Giorgi at her summer camp in Sacramento, Calif. The girl, who has a severe peanut allergy, took a bite of a Rice Krispie square containing peanuts and died after her airways closed off in a reaction to the allergen.

The bill, which now goes to the Senate for consideration, was sponsored by Rep. Phil Roe, a Tennessee Republican and doctor, and Rep. Steny Hoyer of Maryland, the second-ranked Democrat in the House, CBS News/APreported.

"My granddaughter has a severe peanut allergy, and the presence of EpiPens (epinephrine) in schools can be lifesaving," Hoyer said.


Well-Known Hospitals Not Always Best for Surgery: Report

Big-name hospitals in the United States aren't always the best when it comes to surgery, according to a new report.

The Consumer Reports team analyzed federal government data to assess patient outcomes after surgery at nearly 2,500 hospitals. When it came to preventing infection and other measures of quality of care, some well-known hospitals did not always do well, while some big-city hospitals that care for the poorest and sickest patients did surprisingly well, NBC Newsreported.

For example, the poorest overall rating was given to Harvard Medical School-associated Brigham and Women's Hospital and to two of Washington D.C.'s flagship hospitals, MedStar Washington Hospital Center and Sibley Memorial Hospital. Johns Hopkins Hospital received an average rating.

On the other hand, top ratings were given to urban hospitals such as the Greater Baltimore Medical Center and NYU Langone Medical Center in New York, along with some regional facilities such as Nebraska Heart Hospital in Lincoln, NBC Newsreported.

"Consumers have very little to go on when trying to select a hospital for surgery, not knowing which ones do a good job at keeping surgery patients safe and which ones don't," Lisa McGiffert, director of Consumers Union's Safe Patient Project, said in a news release. "They might as well just throw a scalpel at a dartboard."

While it's a good idea to provide patients with information about the quality of surgical care provided at hospitals, the data used in this report is flawed, Dr. Peter Pronovost, senior vice president for patient safety and quality at Johns Hopkins, told NBC News.


Bagged Salad Mix May be Source of Cyclospora Outbreak

Investigators suspect that a bagged salad mix was the cause of a cyclospora stomach bug outbreak that has sickened 372 people in at least 16 states.

Iowa had the most cases -- 143 -- and the state's health department determined that about 80 percent of the patients had been exposed to a prepackaged salad mix, CBS Newsreported.

State health officials have not disclosed the brand or manufacturer of the salad mix, but said it contains iceberg and romaine lettuce, carrots and red cabbage. The salad mix is no longer available in the state.

It hasn't been determined if this same prepackaged salad mix is the source of the multi-state outbreak, said federal officials, who added that they are following other leads as well, CBS Newsreported.


Artificial Ear Created in Lab

Scientists who grew a human-like ear from animal tissue say the achievement moves them a step closer to being able to grow a complete human ear from a patient's cells.

The full-sized artificial ear has the shape and flexibility of a real ear, according to the Massachusetts General Hospital team, BBC Newsreported.

The researchers took living tissues from cows and sheep and grew them on a flexible wire frame in the shape of human ear. This was then implanted in a rat, where it grew for 12 weeks, according to an article in the Journal of the Royal Society Interface.

The team is working on creating artificial living ears to help people with missing or deformed ears, BBC Newsreported.