Travelers Use Medicines and Rituals to Try to Ward Off Sickness

“Before every business trip, Sandra Fink stocks up on echinacea.
Adrienne O’Sullivan takes prescription pills to strengthen her immune
system, while Joel Kangisser is so worried about the risk of a blood
clot in his legs that he takes frequent walks down the plane aisle on
trans-Atlantic flights.”
Link: http://www.nytimes.com