In 1962, a remarkable outbreak of contagious laughter struck at a mission-run boarding school in Kashasha village, approximately 25 miles from Bukoba, near Lake Victoria.

Feb 29, 2008 - John O'Connor

The attention to autism and vaccinations brought by Rep. Michelle Bachmann has led to new studies explaining why autism diagnosis rates are increasing.

Nov 12, 2011 - Shannon Webster

Whooping cough cases are on the rise. Find out how to prevent the spread of this potentially deadly illness.

Nov 10, 2010 - Melanie Shearer

State Health Officials urge Californians to get vaccinated or receive booster shots to protect infants against whooping cough.

Jun 26, 2010 - Julia Wooldridge

In Strasbourg France between July and September 1518, why were around 400 people overcome with an irresistible urge to dance?

Sep 15, 2008 - John O'Connor

More and more men and women are finding themselves on the receiving end of rumors, insults and violent behavior within the workplace.

Dec 11, 2010 - Ebony March

Cholera struck hard and often in 19th-century Canada. The first big epidemic occurred in 1832. Cholera recently made news with the 2010 epidemic in Haiti.

Oct 23, 2010 - Rosemary E. Bachelor

There are ways to help an overweight or obese cat lose weight safely and effectively without endangering their overall health.

Apr 6, 2010 - Penny Pislaan

Childhood obesity rates have tripled over the past 30 years, caused serious damage to the children involved and threaten catastrophic costs in the future.

Apr 10, 2010 - Robert McKelvie

Knowledge of the how and why of the spread of infectious disease is important for control. Without this knowledge increased human disability and death may be inevitable.

Apr 26, 2009 - Donald Reinhardt

Millions of North Americans are obese. A personal plan with measurable goals fights obesity with a healthy and delicious vegan plan-based diet.

Feb 28, 2011 - Glenn Lindsey

The staggering number of children who fall victim to child abuse in this country every year is alarming.

Feb 24, 2011 - Deb Lamb

"Don't let the bedbugs bite," takes on a whole new meaning when these pesky insects infest your home or business.

Oct 26, 2010 - Chandra Brown

More than 15,000 people in the District of Columbia have HIV or AIDS, equal to 3 percent of the city's adult population. Older African American men are hardest hit.

Nov 5, 2009 - Cathy Sunshine

The controversial history of Lyme disease and especially its chronic forms is chronicled in science journalist Pamela Weintraub's excellent book.

Jul 27, 2010 - Maija Haavisto

Teenagers & young adults are increasingly becoming addicted to cell phones and are neglecting basic life and tasks. Parents are losing control of teens.

Feb 1, 2011 - Jennifer Maharajh

As experts predicted nearly one year ago, cases of swine flu are at epidemic levels and it is happening at a rate faster and earlier than previous flu seasons.

Oct 22, 2009 - Lawrence DiVizio

LGBT youth have always been subjected to abuse, but lately gay bullying and gay bashing have become rampant in our supposedly more gay-friendly society.

Feb 15, 2011 - Rachelle Williams

The chicken comes first, then the egg second and, sometimes, the infectious Salmonella epidemic is the third part of the story. Find out about Salmonella.

Aug 19, 2010 - Donald Reinhardt

With much anxiety over avian flu last year, and now swine flu this year, it's helpful to know the lingo: what's an epidemic, what's a pandemic?

Sep 14, 2009 - Ellen Freudenheim