Surgical mask may help prevent influenza transmissionSmall study finds infected patients did not spread virus to petri dish when wearing either N95 or surgical mask in coughing test TB: A global burdenTuberculosis, a formidable disease that affects more than one-third of the world’s population. Clinical Notes: Possible human-to-human transmission of bird flu Concern mounting about potential human-to-human transmission of avian influenza virus. Clinical Notes: New vaccine storage and handling guidelines Includes recommendations for routine vaccine storage and handling, coping with refrigerator or freezer malfunctions. First Previous 126 127 128