Study: Smokers may tap into multiple sources for nicotine

A customer exhales vapor from an e-cigarette in February 2014 at the Henley Vaporium in New York.

The first peek at a major study of how Americans smoke suggests many use combinations of products, and often e-cigarettes are part of the mix.

MU student diagnosed with rare type of meningitis

As two new meningococcal B vaccines undergo scrutiny, a case of the disease has been diagnosed at MU.

Toddler dies of measles in Berlin, first death in outbreak

Officials say many of the people infected in Berlin appear to have been unaware of the risk they faced from under-vaccination, rather than being opposed to vaccines.

Pills before and after sex can help prevent HIV, study finds

The Truvada pills are meant to be taken daily to prevent HIV infection in people at high risk for it, and studies show the drug helps even when some doses are skipped.

UPDATE: Montel Williams speaks up for Missouri medical marijuana bill

While some opponents to the bill argue that medical marijuana law continues to have loopholes, this legislation is considered by some to be a possible model for the rest of the country. Proponents include Republican Rep. Caleb Jones and TV personality Montel Williams, who treats his multiple sclerosis with medical marijuana. 

Early exposure to peanuts helps prevent allergies in kids

For years, parents of babies who seem likely to develop a peanut allergy have gone to extremes to keep them away from peanut-based foods. Now a major study finds that early exposure to a problem food may keep it from becoming a long-term problem. 

Connections between medical students, mentors help promote understanding of aging

The Senior Teacher Educator Partnership matches MU medical students with older citizens in the community so students can see the aging process from their perspective and enrich patient care.

Number of insured Missouri residents rising sharply as 2015 open enrollment ends

Even with more people insured, up to 250,000 more would be eligible for expanded Medicaid coverage.

Survey results underestimate support for legalizing pot, activists say

More than a quarter of those surveyed said they opposed legalization entirely, even for medicinal use.

Missouri's measles-mumps-rubella vaccine rate falls below national average for preschool-age children

Missouri ranks 35th for its rate of measles-mumps-rubella (MMR) vaccination in children 19-35 months. The number of people claiming a religious exemption has risen steadily over the past three years.

Vaccine opposition has ebbed and flowed over centuries

The vaccination debate was reignited after a measles outbreak in Disneyland last December.

Q&A: What are measles and why is the outbreak worrisome

Following a multi-state measles outbreak infecting more than 100 people, Michael Cooperstock answered questions about the disease and the dangers it poses in some cases.


Democrats seek relief from health law penalties

The lawmakers say they are concerned that many of their constituents will find out about the penalties after it's already too late for them to sign up for coverage since open enrollment ended Sunday.


U.S. teens getting less and less sleep, study shows

Possible contributing factors include increasing use of social media, smartphones and other electronics, and rising rates of obesity, which has been linked with sleep deprivation.

UPDATE: CDC says nasty flu season has peaked, is retreating

The flu season peaked in the early weeks of January.

Researchers test device to help deaf children detect sounds

Cochlear implants don't work for deaf children who lack their hearing nerve, but a medical innovation called an auditory brainstem implant might be able to fix that.

Disney gave input on measles health messages

Disney officials asked Orange County health officials to stress that Disneyland was safe to visit amid a measles outbreak.

Brain stents show big promise for certain stroke patients

"This is a once-in-a-generation advance in stroke care," said Jeffrey Saver, stroke chief at the University of California, Los Angeles, and the head of a recent study of the new treatment.

Mississippi, West Virginia toughest on school immunizations

Due to strict requirements on needing immunizations to attend school, these states are able to keep their immunization rates above 95 percent.

Boone County Health Department warns against shigella outbreak

There have been 42 cases of the bacterial infection in the county in the past three weeks. Boone County has averaged six cases a year for the past five years.