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number of unidentified oblong elliptical shaped diatoms were featured
chitinous abdominal exoskeletal plates were seen overlapping proximally to its distal tip
these were the tools used by the pakistani malaria control team when they were mixing malathion powder
negative stained transmission electron micrograph recreated 1918 influenza virions that were collected from the sup
1918 influenza virions that were collected from supernatants of 1918 infected madin darby canine kidney cells cultu
this was a group of campas a former wanderer tribe who were being investigated
these were field clinicians during the world wide smallpox eradication efforts
these tracks in snow were made by a deer mouse peromyscus maniculatus
these nigerian women were about to receive smallpox vaccinations
nigerians were receiving their smallpox vaccinations
bangladesh men were analyzing collected data
technicians that were loading a mobile quarantine facility into an aircraft
several loadmasters as they were loading mobile quarantine facility into an aircraft
nigerian children were photographed as they received vaccinations for measles and smallpox