Emory University researchers suggest that glutathione could be used as a flu preventive by exposing it directly to the tissues lining the mouth and upper airway. Studies have shown that glutathione reduces cellular damage caused by reactive oxygen, but its effectiveness in preventing disease has been unclear.
A new study by University of Michigan professor Dr. Arnold S. Monto found that zanamivir, an antiviral drug, is 67% effective in preventing laboratory-confirmed clinical influenza infection. The drug was also shown to be 84% effective in preventing laboratory-confirmed illnesses with fever.
Healthcare professionals who received the flu vaccine lost significantly fewer days of work due to illness compared to those who did not receive the vaccine. The vaccine also reduced the rate of influenza type A and B infections among vaccinated individuals.
A new nasal flu vaccine has delivered good antibody responses and proven safe in children, offering a potential solution to stop the spread of the disease. The vaccine's effectiveness is now being analyzed in a larger study, which may lead to FDA approval starting in 1999.