Symptoms

More than 600 cases of the infection, which can be fatal if it gets into the bloodstream, have been reported.

The symptoms of post-treatment Lyme disease can derail normal life, scientists say.

"This problem has the same urgency as opioids and gun violence," said a doctor whose patient was tricked into giving up most of his life savings.

So far this year, 387 cases of the disease have been reported across the country.

Dr. Albert Karam of Texas told Newsweek that banning unvaccinated patients from his office was an act of duty to the vulnerable children he treats.

Of the 34 cases of measles confirmed in Washington state, 30 individuals had not been vaccinated against the disease.

The flu is easy to give to others and some people stay contagious for more than a week.

Scientists studied the brains of almost 500 patients with obsessive compulsive disorder. 

55-year-old woman developed condition through a reaction to antibiotics.

The highly contagious virus has continued to spread.

At least 24 staff members and inmates have been exposed to an unknown substance at an Ohio correctional facility.

The deadliest year for West Nile virus so far in the U.S. was 2012, with almost 300 deaths.

The red dots that blister on the skin are an easy-to-spot symptom.

More than one-third of patients consulted the internet before coming to the emergency room.

Scientists in Sarasota developed a new machine called an Ozone Treatment System that can remove toxins from water.

The measles vaccine has led to 99 percent fewer measles cases, but the majority of patients in the current outbreak were unvaccinated, according to the Centers for Disease Control and Prevention.

Kit Tarka's parents have launched a charity after their son died.

Researchers tested people with photos of genuine and fake emotions to find out if those with psychopathic traits could tell the difference.

Annually, about 200 people are killed by the condition, whose symptoms overlap with that of the flu.

The discovery could help researchers create a blood test to diagnose depression.

Treatments exist for symptoms, but scientists haven't been able to find a cure—until now.

Natalie Rawnsley fell ill after dining at a buffet in Greece with her husband and two sons.

Hand, foot and mouth disease usually affects children under the age of five.

Scientists believe a chemical used to cure meats could trigger mania.

Experts have warned parents about the risks of boron.

Alex Childress was gardening to raise for money for college when he encountered a poisonous giant hogweed.

Angela Wright's apartment was sprayed, but the brown recluse spiders remained.

Toxic shock syndrome is widely associated with young women, but anyone can develop the life-threatening condition.

"Giant hogweed makes poison ivy look like a walk in the park," officials warned.

The new technique could be an important tool for catching a cancer that can be tough to diagnose.