The conventional wisdom is that it takes 15 minutes of close contact to a contagious person to put you at risk. But even a short exposure could prove problematic.
This outbreak of COVID-19 adds to the list of animals that can contract the disease. And, in this instance, the minks seem to have passed the virus on to humans.
A large study of Danish kids finds that childhood infections are linked with a higher risk of developing some mental illnesses. The risk is highest in the months immediately following the infection.
Infections from intravenous drug use are often hidden, under sleeves and beneath pants. These wounds of addiction may be buried in shame. They can also be serious, requiring surgery or constant care.
A 51-year-old man nearly died from septic shock, when a crushing injury led to overwhelming infection. After getting an experimental treatment, he's recovering well, but some doctors want more proof.
Some states dictate how doctors must treat this life-threatening reaction to infection, and early intervention is helping. But scientific evidence may be changing too rapidly for the rules to keep up.
Hospital-acquired infections can be life-threatening, and unwashed hands are often to blame. One hospital in California thinks banishing handshakes could help reduce infections.
Although a CDC study released today found that 80 percent of cases develop outside the hospital or at a nursing home, many people still don't know about this lethal medical condition.