Dandelion pollen field: Robert S. Donovan
Cattails: Universal Pops
Kitten: Mathias Erhart
Sneeze: William Brawley
Inhaler: NIAID
Peanuts: Martin L
Bees: coniferconifer
Skin: Sofia
Medication: Erich Ferdinand
AIDS: Wikipedia (Public Domain)
Doctor with tablet: NEC Corporation of America