First Report of Feline Immunodeficiency Virus in Stray and Pet Cats in Baghdad Governorate, Iraq
Abstract
Feline immunodeficiency virus (FIV) is a retrovirus known to cause various forms of diseases in pet and wild cats. FIV prevalence and its associated risk factors in Iraqi cats have heretofore been unknown. From January 2021 to January 2022, a cross–sectional study was conducted in Baghdad governorate to estimate the seropositivity for FIV antibody and the potential risk factors associated with positive serological results among stray and pet cats. Across 60 Baghdad governorate regions (32 regions from Al–Rusafa, 28 regions from Al–Karkh), a total of 250 cat blood samples were randomly collected from 78 pet and 172 stray cats. All cats were clinically examined, and data regarding age, sex, breed, lifestyle, health status, and clinical history were obtained from cat owners, whereas stray cats’ data were estimated based on their body condition and dental age. Recorded data were evaluated as risk factors potentially associated with the status of FIV. The presence of FIV antibodies in blood samples was determined using an immunochromatographic assay. The overall FIV seroprevalence was estimated at 13.20% (33/250). Out of 172 stray and 78 pet cats, there were 13.95% (24/172), and 11.54% (9/78) positive cats for FIV antibody, respectively. In addition, the highest rate of cats tested positive for FIV antibodies was recorded in Shirazi breed (16.13%, 5/31) followed by local breed (14.43%, 28/194). However, these two variables (lifestyle and breed), in addition to the sampling area variable were not significantly associated with the FIV seropositive status. The risk factors significantly associated with FIV seroprevalence were determined as age, sex, and health status. Adult cats (22.4%, 32/143) were more than 30 times likely to be FIV seropositive compared to young cats. The estimated odd ratio of cats’ exposure to FIV infection increased 1.81 times (95% CI=1.46–2.25, P<0.001) for each year of life. Risk of FIV seropositive status was significantly higher in male cats than females. Male cats were 4.79 times more likely (95% CI=1.76–12.9, P<0.0019) to test positive for FIV antibody than females (5/105, 4.76%). Compared to apparent healthy cats, cats clinically appeared non–healthy had 12.51 times (95% CI=1.67–93.6, P<0.0139) higher odds of being seropositive for FIV antibody. This is the first report on the prevalence rate of FIV infection in cats in Iraq, Baghdad. Our results indicated the presence of FIV among cats in Baghdad governorate at a relatively high rate with a higher risk of infection may be associated with adult males experiencing health issues.