Officials have been monitoring the situation since the first case of MERS was reported in the US earlier in May. Now, a close contact of this patient has tested positive for the virus.

Inflammatory bowel diseases are serious conditions on their own. But they also can lead to life-threatening complications that may extend to organs beyond the digestive system — even to the heart.

Women who have gestational diabetes during pregnancy have a higher risk of developing type 2 diabetes later in life. Certain lifestyle changes may reduce that risk.

For those with aortic stenosis (a narrowing of the aortic valve), a valve replacement procedure using a catheter has emerged as an alternative to surgery. The procedure is not only minimally invasive, but it also may help patients live longer.

People with diabetes are at risk for heart disease. One gender may face a higher risk than the other.

Over the past decade, as diabetes management has improved, fewer have been hospitalized for high blood sugar. Hospitalization rates for low blood sugar, on the other hand, have risen.

Kids who don't get enough sleep might drive their parents crazy sometimes, but there could be more at stake. Kids' waistlines could suffer too.

Some parents may feel it's better to delay their children's vaccines instead of following the officially recommended schedule. But that could present more risks from side effects.

Although their makers may tout them as a healthier alternative to smoking, e-cigarettes have potential harmful effects — including increasing the strength of deadly bacteria in the body.