SUNDAY, Sept. 28 (HealthDay News) -- A vaccine that protects against the miserable symptoms of ragweed allergy for a longer period of time -- and with fewer injections -- could be available in the coming years.
SUNDAY, Sept. 28 (HealthDay News) -- A vaccine that protects against the miserable symptoms of ragweed allergy for a longer period of time -- and with fewer injections -- could be available in the coming years.
