Abstract
Studies on the prevalence of infection by Dirofilaria immitis in Australian cats are rare. The current study aimed to determine the prevalence of infection with D. immitis in a tropical region of Australia by antigen, antibody and PCR testing. 172 healthy cats over 6months of age from the Townsville region of Australia were tested for D. immitis specific antibodies and antigen using a commercially available kit. 50 samples were subsequently retested using a second commercially available antibody kit. 48 of these samples were checked for D. immitis DNA using PCR. No cat tested positive on any test. Maximum antigen and antibody prevalence was calculated as 1.27% and 2.10%, respectively.
Highlights
Dirofilariosis is common in dogs in many areas of the world, especially in wet tropical and subtropical regions[1,2,3,4,5,6,7,8]
The current study aimed to determine the prevalence of D. immitis in an endemic region of Australia by antigen, antibody and PCR testing
172 healthy cats over 6 months of age from the Townsville region of Australia were tested for D. immitis specific antibodies and antigen using a commercially available kit. 50 samples were subsequently retested using a second commercially available antibody kit. 48 of these samples were checked for D. immitis DNA using PCR
Summary
Studies on the prevalence of infection by this parasitic helminth in Australia cats are rare and relatively old. Data obtained from other countries would suggest a likely prevalence of 4.7–16%. The current study aimed to determine the prevalence of D. immitis in an endemic region of Australia by antigen, antibody and PCR testing
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