Philadelphia school vaccination record, 1920s
Ebola viruses budding from cell, NIAID
Percentage of Visits for ILI, Week Ending 2/3/2018, CDC
ILI activity level indicator, week 3, 2017-18 season. CDC
Percentage of Visits for ILI, 2009-2018, CDC
Dalton Paxman, PhD, Regional Health Administrator, Region III, US HHS
Ketcia Orilius, a community health worker in Robin, Haiti, gives an infant an immunization.Photo credit: David Rochkind/USAID
Boy with measles. Historical Medical Library of The College of Physicians of Philadelphia.
Stanley A. Plotkin, MD
Influenza Virion, CDC, Frederick Murphy
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