Companion vector-borne diseases (CVBD) are a growing global threat. Transmitted by blood-feeding ectoparasites like ticks, fleas, mosquitoes and sand flies, diseases such as Lyme borreliosis, babesiosis or leishmaniosis are known to veterinarians throughout the world and in some cases also have zoonotic consequences.

Major input to this website comes from the CVBD World Forum, a working group of leading international experts, who meet at least once a year at the International CVBD Symposium to discuss current scientific findings as well as future trends and needs concerning the distribution, pathogenesis, clinical presentation, diagnosis and prevention of CVBD.
The CVBD World Forum is supported by Bayer HealthCare, Animal Health Division, a specialist in the field of parasite prevention.

CVBD Overview
Meet the Forum and listen to what they have to say Previous Symposia


The Vector-Borne Diseases webconference is now available to watch online in English, Spanish, Italian, French, German and Russian.

Click here to watch the webconferences

World Occurrence Maps

(based on Pubmed listed articles, scientific abstracts, expert opinion and feed-back from local veterinarians)

Each country has its specific occurrence of CVBDs depending on climate and endemic vectors.

Clinical Sessions

The following authentic reports provide insights into selected CVBD cases