They not only protect the recipient, but also offer 'herd immunity,' experts say
U.S. experts also say egg allergy is no longer reason to avoid the flu vaccine
Children and seniors especially vulnerable; infections declining in some regions
Lentiviruses evolved to current form found in monkeys
A norovirus from Australia caused majority of U.S. outbreaks at the end of 2012
Rotavirus infection causes severe gastrointestinal symptoms and can be deadly
U.S. still on hold, but scientists in other countries ready to end moratorium
Extra pounds may hinder success of procedure, research review suggests
If kids aren't well enough to learn, it's best to keep them home
Even when patients took blood thinners, study found higher rate of dangerous clots in lungs, legs
The feared Ebola virus is much less common, study says
It's still not too late to get vaccinated, experts say
Increase in Eastern equine encephalitis may be partly due to warming climate, more exposure to mosquitoes, researcher says
Flublok easier to produce quickly and in large quantities, agency says
Lyme disease is better known, but a different germ causes an infection that may lead to dementia
In small study, new treatment was more effective than antibiotic on hard-to-treat bacteria
As the outbreak worsens, health experts urge flu shots, frequent hand-washing and other measures
Instead of helping hospitalized patients, treatment promotes infection in some
Agency is offering tips on how to find the shot or medication at a clinic or pharmacy near you
Study found that sufferers often expected hacking to cease within a week, but 3 weeks is more realistic
In study, rate of college men who did so jumped to 86 percent after signs appeared
Infections appear to be falling in the Southeast, where the virus first appeared
Take white blood cell counts early and often, study says
Expert urges medical staff, families to recognize 'post-hospital syndrome'
Manipulation of aging T-cells might help them defend against diseases such as HIV and cancer, researchers say
Study uses computer model to assess risk of Chikungunya virus
Review found equal long-term recovery in patients who followed specific rehab program
The germ thrives in low or very high humidity, scientists say
Risk of death was 4 times lower if the virus stayed at undetectable levels for 6 months, researchers found
But dose for these tots must be calibrated to their weight, agency says
29 states are now reporting outbreaks, 12 have 'high levels,' agency says
Though cure rates are good, many Baby Boomers don't even suspect they have the liver disease
But gay and bisexual men, and minorities, still make up bulk of new cases
Dogs like Cliff are giving a whole new meaning to 'pet scan'
The cervical cancer-causing virus may not fully clear from the body as once thought, experts say
Finding might help public health officials develop plan to contain possible outbreak
Review found smoking during pregnancy and in the home raised odds of dangerous bacterial infection
'Kitty litter' parasite seems to trigger immune reaction linked to mental health problems in people
Data likely 'just the tip of the iceberg,' researcher says
Study found benzodiazepines, used for anxiety and sleep, also boosted chances of dying from pneumonia
Five people died from mucormycosis after 2011 Joplin, Mo., tornado
They aren't always produced in sterile environments, can cause infections, experts say
Wash your hands before and after extraction
Experts say get vaccinated now
But protective effect faded after a year in large study of 'serodiscordant' partners
HIV-positive kids taking anti-malarials plus protease inhibitors had lower rates of recurrence
Texas still the hardest hit state with 1,714 cases, 76 deaths, CDC says
Compared to osteoarthritis, those with rheumatoid disease had higher risk of infection, dislocation
Children and young adults 13 to 24 now represent more than one in four new infections, CDC says
Generation has highest rate of infection, likely contracted decades ago