This illustration depicts a three-dimensional (3D) computer-generated image of a group of aerobic, Gram-negative, Bordetella pertussis bacteria. The artistic recreation was based upon scanning electron microscopic (SEM) imagery. [Source: CDC PHIL: CDC/ Sarah Bailey Cutchin]

International Union of Immunological SocietiesUniversity of South AfricaInstitute of Infectious Disease and Molecular MedicineElizabeth Glazer Pediatric Aids FoundationStellenbosch University