Fig 1.
Photographs of ultraviolet light microscopy (×400) of A. phagocytophilum IgG semi-quatitative IFA measurement using a commercial kit (Focus Diagnostics, Cypress, California, USA) showing a negative control (A), a positive control (B) and for positive dilutions i.e., 1:64 (C), 1:128 (D); 1:256 (E) and 1:516 (F) from the same patient.
The positivity is set on the observation of green morulae surrounding the cell’s cytoplasmic membrane.
Table 1.
Distribution of the number of blood donors and of positive samples for both dilutions according to city.
Table 2.
Distribution of age, sex, exposure to ticks, contact with dogs or other domestic animals and travel history outside Morocco in both dog handlers (n = 138) and blood donors (n = 115) groups.
Table 3.
Number of seropositive samples in both dog handlers (n = 138) and blood donors (n = 115) groups at the four different dilution.
Fig 2.
Distribution of positivity rates for the four A. phagocytophilum IgG dilutions (i.e, 1:64, 1:128, 1:256 and 1:516) in both dog handlers (A) and blood donors (B) groups.
Fig 3.
Distribution of A. phagocytophilum IgG positivity rates in blood donors according to the region of living the Rabat-Salé-Kénitra (RSK), Casablanca-Settat (CS), Tangier-Tétouane-Al Hoceima (TTAlH) and Souss-Massa-Drâa (SMD) regions and for both 1:64 (A) and 1:128 (B) dilutions.
Table 4.
Distribution of seropositive samples according to the gender, age group, presence of outdoor activities, contact with ticks, dogs or other animals and travel history in the blood donor group for both 1:64 (n = 41) and 1:128 (n = 25) dilutions.