News

Potential risk of heartworm infection in the United States of America and its projected incidence by 2100 | Parasites & Vectors | Springer Nature Link

August 24, 2026
  • Abstract Research  Open access Published: 20 August 2026

 Background

Heartworm disease, caused by the parasitic roundworm Dirofilaria immitis, is a [rare] vector-borne zoonosis transmitted by culicid mosquitoes and widely distributed in the USA, where prevalence is highest in the southeastern states. Transmission dynamics are influenced by environmental and anthropogenic factors, and climate change is expected to modify its distribution. Within a One Health framework, this study generates monthly and annual risk maps for heartworm transmission in the USA and projects the habitat suitability of vectors to the year 2100.

Conclusions

Heartworm transmission risk in the USA shows strong geographical expansion potential driven by climate conditions. Our risk maps reveal emerging areas of suitability and provide an early warning tool for One Health surveillance and prevention strategies.

SEE: Potential risk of heartworm infection in the United States of America and its projected incidence by 2100 | Parasites & Vectors | Springer Nature Link

https://link.springer.com/article/10.1186/s13071-026-07293-5?utm_source=bmc_etoc&utm_medium=email&utm_campaign=CONR_13071_AWA1_GL_DTEC_054CI_TOC-260824

Note: According to the CDC About Dirofilariasis, human infection rarely causes severe illness.

Quick Links