Lead levels that shoot above 5 micrograms per deciliter of blood in children under the age of six are considered dangerous and can inhibit the child’s growth and cause learning disabilities and behavioral problems. A report released by the Center for Disease Control and Prevention on Friday found the odds of a young child living in Flint Michigan contracting such high levels of lead in their blood system rose by 50 percent after the city switched its water supply from Detroit’s water system to the Flint River in April 2014.

The first case of HIV contraction in a person taking PrEP (pre-exposure prophylaxis, or a antiretroviral drug cocktail used to protect people from contracting HIV) daily has been documented and presented by David Knox, MD, an HIV specialist at the Maple Leaf Medical Clinic, at the 2016 Conference on Retroviruses and Opportunistic Infections (CROI) in Boston, according to Benjamin Ryan at Poz. Ryan reports:

An armed security guard who lost his job after taking an elevator ride with President Obama says the only thing he did wrong was trust that the Secret Service knew what it was doing.

The Dallas hospital that treated Texas Ebola patient Thomas Eric Duncan didn't have appropriate protective gear and reportedly left him in a room with other patients for "several hours" before ultimately putting him in isolation, exposing at least 76 people.

One of the two Americans infected with ebola is set to return to the United States. As reported by the Atlanta Journal-Constitution, Emory University Hospital in Atlanta will receive the patient for treatment in the next couple of days.

A new CDC survey suggests the U.S.'s LGB population is smaller than suspected: "96.6% of adults identified as straight, 1.6% identified as gay or lesbian, and 0.7% identified as bisexual. The remaining 1.1% of adults identified as 'something else,' stated 'I don't know the answer,' or refused to provide an answer."

The Center for Disease Control is closing its anthrax and flu labs after two accidents that could have exposed employees and the public to disease. "Shipments of all infectious agents" are going to be halted, too. The screw-ups, one of which was just reported today, weren't minor.

The U.S. Centers for Disease Control and Prevention announced today that up to 75 of its scientists may have been exposed to live anthrax bacteria in its laboratories in Atlanta. According to Reuters, the scientists were exposed after staff at a high-level biosecurity lab failed to follow the proper procedures to render the live anthrax bacteria inactive. So far, the CDC reports, none of the potentially exposed staff has reported any symptoms.

The C.D.C. made a statement in support of PrEP (pre-exposure prophylaxis in the form of the pill Truvada) on Wednesday. The institute recommends PrEP for people "at substantial risk for HIV," including men who have sex with men without condoms, HIV negative people in serodiscordant couples, and intravenous drug users.

Food activists and anti-regulation libertarians are fighting for their right to drink unpasteurized milk in peace, even though illnesses connected to drinking it are rising.

Nearly 11 percent of children in the United States between the ages of 4 and 17 have been diagnosed with ADHD, according to CDC researchers. Two-thirds of those children are currently being medicated.

The Centers for Disease Control says that more than 250 people in six states have come down with a stomach bug from an unidentified source. The cyclospora infection — which causes diarrhea and other flulike symptoms — has been reported in Iowa, Nebraska, Texas, Wisconsin, Georgia and Connecticut, and could be a foodborne illness.

The world is not a safe place. You are, we trust, already doing what you can to protect yourself against the regular flu, but while you've been washing your hands until the skin on your knuckles begins to crack, the flu has been busy reinventing itself.

It's hard to believe that only yesterday io9 introduced us to "Vomiting Larry,", the mannequin-like robot designed to vomit on command "not just forcefully, but in an anatomically accurate fashion." In some ways it feels like old Larry's been with us for years, teaching us all how to vomit correctly. But he's not just a novelty vomiting robot; he's here to help scientists stop the spread of the stomach flu:

The best way to get young people interested in emergency preparedness: zombies.

The Centers for Disease Control and Prevention today released the results of a survey on oral sex prevalence among young Americans conducted between 2007 and 2010.

This isn't the first time we've heard rumblings about swine flu, but the CDC wants us on the alert about a new strain that spreads from pigs to people.

According to a CDC study, which I am very qualified to interpret, one out of thirteen pregnant women are boozing it up. And out of that group of lushes, one in five are getting hammered, which the CDC not-so-euphemistically describes as binge drinking (or having four or more drinks in two hours).

The Department of Health's Centers for Disease Control and Prevention today issued an official statement denying the existence of a "Zombie Virus" following a recent spate of incidents involving people behaving in a zombie-like manner.

Good news, hypochondriacs — here's something new to worry about. On Friday, the CDC issued draft recommendations urging all baby boomers (those born between 1945 and 1965) to get tested for hepatitis C. Of the 3.2 million Americans with hep C, 2 million are baby boomers. And they might not know it.