Biologist Rebecca Gillespie holds a vial of flu-fighting antibodies at the Vaccine Research Center at the National Institutes of Health.
Biologist Rebecca Gillespie holds a vial of flu-fighting antibodies at the Vaccine Research Center at the National Institutes of Health. Carolyn Kaster AP
Biologist Rebecca Gillespie holds a vial of flu-fighting antibodies at the Vaccine Research Center at the National Institutes of Health. Carolyn Kaster AP