On a flight arriving from Johannesburg, a West African diplomatic worker vomited blood on stewardesses and shared drinks with other passengers. Holy crap. Fortunately, Ebola spreads terror better than its viruses survive travel from diseased persons to others. I think transmission is strictly "blood-to-blood." Still: Ebola, something to avoid if you can. Here's a heartening tidbit: The embassy worker "had visited a doctor before the flight complaining of flu symptoms and was told she could fly."