Anaplasma phagocytophilum lives inside human neutrophils, where it forms cytoplasmic clumps called morulae visible on a Giemsa-stained blood smear. Spotting morulae in a neutrophil is a fast bedside diagnostic for human granulocytic anaplasmosis - faster than serology and useful before empirical doxycycline goes in.
Ehrlichia chaffeensis and Anaplasma phagocytophilum cause clinically similar diseases but parasitize different white blood cells.…
When a clinician suspects ehrlichiosis or anaplasmosis but the antibody titers are too cross-reactive to call, PCR on whole blood drawn…
CDC's surveillance category undetermined ehrlichiosis or anaplasmosis exists because the two diseases share clinical presentation,…
Ehrlichia chaffeensis ehrlichiosis classically presents with fever, headache, and a triad of laboratory findings: leukopenia,…
Babesia microti lives inside red blood cells and survives standard blood-bank storage. Between 1979 and 2009, 159 of 162 reported United…
Babesiosis is sometimes called the malaria of the northeast: like Plasmodium, Babesia parasites invade red blood cells and rupture them,…