Difference in Heartworm Susceptibility and Vector Competency for Dirofilaria immitis of the Five Sibling Species in the Anopheles quadrimaculatus Species Complex

Location

Presentation- College of Science and Mathematics

Document Type and Release Option

Thesis Presentation (Archived)

Faculty Mentor

Dr. William Irby

Faculty Mentor Email

.

Presentation Year

2021

Start Date

26-4-2021 12:00 AM

End Date

30-4-2021 12:00 AM

Keywords

Georgia Southern University, Honors Symposium, Presentation

Description

Anopheles quadrimaculatus sensu latu is a known vector of Dirofilaria immitis, a filarial nematode that causes canine heartworm disease. Canine heartworm disease is common throughout the Southeastern United States, especially in Georgia. This study focused on trying to understand if the five sibling species in the Anopheles quadrimaculatus sensu latu species complex have different vector competency and susceptibility in carrying canine heartworms. Mosquitoes were collected under bridges in Bulloch County and Effingham County using a specialized vacuum. The Anopheles quadrimaculatus sensu latu mosquitoes were identified to specific species and sex. Females were dissected and viewed with a compound microscope to check for the presence of Dirofilaria immitis. None of the collected mosquitoes were found to be heartworm positive, but the larger prevalence of Anopheles quadrimaculatus sensu stricto was noted, as well as the smaller prevalence of Anopheles inundatus. More research is necessary to understand if there is a difference in vector competency and susceptibility between the five sibling species of Anopheles quadrimaculatus sensu latu.

Academic Unit

College of Science and Mathematics

Comments

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Apr 26th, 12:00 AM Apr 30th, 12:00 AM

Difference in Heartworm Susceptibility and Vector Competency for Dirofilaria immitis of the Five Sibling Species in the Anopheles quadrimaculatus Species Complex

Presentation- College of Science and Mathematics

Anopheles quadrimaculatus sensu latu is a known vector of Dirofilaria immitis, a filarial nematode that causes canine heartworm disease. Canine heartworm disease is common throughout the Southeastern United States, especially in Georgia. This study focused on trying to understand if the five sibling species in the Anopheles quadrimaculatus sensu latu species complex have different vector competency and susceptibility in carrying canine heartworms. Mosquitoes were collected under bridges in Bulloch County and Effingham County using a specialized vacuum. The Anopheles quadrimaculatus sensu latu mosquitoes were identified to specific species and sex. Females were dissected and viewed with a compound microscope to check for the presence of Dirofilaria immitis. None of the collected mosquitoes were found to be heartworm positive, but the larger prevalence of Anopheles quadrimaculatus sensu stricto was noted, as well as the smaller prevalence of Anopheles inundatus. More research is necessary to understand if there is a difference in vector competency and susceptibility between the five sibling species of Anopheles quadrimaculatus sensu latu.