Vector Pathogen Disease Distribution Victim
ACARI (ticks and mites) Rickettsia  
Liponyssoides sanguineus Rickettsia akari rickettsial pox world humans
Leptotrombidium spp. Rickettsia tsutsugamushi scrub typhus Southeast Asia humans

various, especially Dermacentor spp.

dog tick

The American dog tick, Dermacentor variabilis. The species can transmit Rocky Mountain spotted fever, a rickettsial disease.

Rickettsia rickettsii Rocky Mountain spotted fever North and South America humans
  Bacteria  
Argas spp. Borrelia anserina avian spirochetosis Africa, Australia, Middle East, South America birds
Ixodes scapularis, Ixodes pacificus Borrelia burgdorferi Lyme disease United States humans
Ornithodoros spp. Borrelia recurrentis relapsing fever Africa, Asia, Europe, North America, South America humans
various spp. Francisella tularensis tularemia world humans
Boophilus annulatus (& other species) Babesia bigemina Texas cattle fever Africa, Central and South America, Europe, Southeast Asia cattle
Rhipicephalus appendiculatus (& other species) Theileria parva East Coast fever Africa cattle
  Virus  
Dermacentor andersoni (& other species) CTF virus Colorado tick fever United States, Canada humans
Hyalomma marginatum CCHF virus Crimean-Congo hemorrhagic fever Africa, Asia, Europe humans
Ixodes persulcatus (& other species) RSSE virus Russian spring-summer encephalitis Russia humans
Ixodes ricinus LI virus louping ill Europe sheep
Ixodes ricinus (& other species) TBE virus tick-borne encephalitis Europe, Russia humans
Ornithodoros porcinus ASF virus African swine fever Africa, Europe swine
INSECTS
Anoplura (lice) Bacteria  
Pediculus humanus Borrelia recurrentis epidemic relapsing fever Africa humans
  Rickettsia  
Pediculus humanus Rickettsia prowazekii louse-borne typhus Africa humans
Pediculus humanus Rochalimaea quintana trench fever Africa, Asia, Europe, Central & South America humans
Diptera (flies) Viruses  
Culicoides spp. bluetongue virus bluetongue Africa, Asia, United States sheep
Culicoides spp. BEF virus bovine ephemeral fever Africa, Australia cattle
Aedes spp. especially A. aegypti DEN virus dengue Carribean, Southeast Asia, North America humans
Aedes spp. especially A. aegypti YF virus yellow fever Africa, Central & South America humans
Aedes spp. especially A. triseriatus LAC virus LaCrosse encephalitis North America humans
Culex spp. SLE virus St. Louis encephalitis North & South America humans, horses
Culex spp. JBE virus Japanese encephalitis eastern Asia humans
Culex and Culiseta spp. WEE virus western equine encephalitis Europe, North & South America humans, horses
various spp. EEE virus eastern equine encephalitis North & South America humans, horses
various spp. VEE virus Venezuelan equine encephalitis North & South America humans, horses
various spp. RVF virus Rift Valley fever Africa humans, livestock
Phlebotomus papatasi (& other species) sand fly fever virus sand fly fever Africa, Asia, Europe humans
  Protozoa  
Anopheles spp. Plasmodium falciporum, P. malariae, P. ovale, P. vivax malaria world (tropics) humans

Glossina spp.

bug

USDA

The tsetse fly, Glossina spp., transmits protozoans which cause sleeping sickness and nagana.

Several species can transmit the flagellate protozoans. They include Glossina palpalis, G. fuscipes, G. tachinoides, G. morsitans, G. swynnertoni, and G. pallidipes.

Trypanosoma brucei gambiense sleeping sickness tropical Africa humans
Phlebotomus spp. (Old World);Lutzomyia spp. (New World) Leishmania spp. Leishmaniasis, Kala-azar, dumdum fever world (New World: forested and arid tropics) (Old World: savanna, steppe, subtropical) humans, dogs
Glossina spp. Trypanosoma brucei brucei nagana tropical Africa cattle
  Nematodes  
Aedes, Anopheles, & Mansonia spp. Brugia malayi brugian filariasis Southeast Asia humans
Culex pipiens, Aedes & Anophelesspp. Wuchereria brancrofti Bancroftian filariasis world (tropics) humans
various spp. Dirofilaria immitis dog heartworm world dogs
Simulium spp. Onchocerca volvulus onchocerciasis Africa, tropical South America humans
Chrysops spp. Loa loa loiasis Africa humans
Hemiptera (true bugs) Protozoa  
Triatominae spp. Trypanosoma cruzi Chagas' disease South America humans
Siphonaptera (fleas) Bacteria  

Xenopsylla spp., primarily X. cheopis

flat flea

Adult Oriental rat flea, Xenopsylla cheopis, the primary vector of bubonic plague.

Yersinia pestis plague world humans
  Rickettsia  
various spp. Rickettsia typhi murine (flea-borne) typhus Central & North America, Europe humans
  Virus  
Spilopsyllus cuniculi myxomatosis virus myxomatosis Australia, Europe rabbits