REHS Exam |166 Questions with 100% Correct Answers | Verified | Latest Update 2024

REHS Exam |166 Questions with 100% Correct Answers | Verified | Latest Update 2024 What is the most common mosquito borne disease in the USA today? Encephalitis What is the primary vector and the infectious agent for Eastern Equine Encephalitis? Culisita species mosquito; Viral What is the primary vector for St. Louis Encephalitis, Western Equine Encephalitis, and West Nile Virus? Culex species mosquito Name the disease caused by Borrelian burgdorferi, symptoms, the wound type, & incubation period. Lyme Disease(meningopolyneuritis);Wound: red spot or bump expanding annularly to ring/bulls eye pattern from tick bite(vector found on Deer, wild rodents); Incubation: 3 to 32 days; fever, fatigue, headache, chronic stiff/painful muscles & joints What is the primary vector, reservoir & incubation period for Yellow Fever? Mode of transmission (vector):Aedes species mosquito; Rsvr: Humans, Aedes aegypti, monkeys; Incubation:3-6 Days. What are the primary vectors for Endemic (Murine) Typhus, Epidemic Typhus, and Scrub Typhus? Endemic: Rat flea, Xenopsylla cheopis; Epidmemic: Body lice, Pediculus humanus; Scrub: bite of infected larval mites Name the specific agent responsible for Endemic Typhus, Epidemic Typhus, and Scrub Typhus. Endemic: Rickettsia typhi (R. mouseri); Epidemic: Rickettsia prowazeki; Scrub: Rickettsia tsutsugamushi Which vertebrates can transmit rabies to human? Which 2 species are the most important reservoir hosts? What is typical incubation in humans? Raccoon, skunks, bats, foxes, dogs, cats, coyotes; Primary reservoir host = bats (from bite or inhaling urine); Secondary reservoir host = skunks; 3-8 weeks What is the bird dieases that affects man? Ornithosis What does a positive blue ring test in milk indicate? Brucellosis What disease is commonly contracted by veterinarians and workers who handle animal hides and animal hair/wool? Name the agent,it's characteristics, & othr resvr. Anthrax (bacillus anthracis); a spore-forming bacteria, spores do not survive thorough cooking but do survive dryness many years; also found in soil & invades bones of animals so in dry bone meal. Name the protozoan parasites responsible for causing Malaria in humans. Which is more dangerous? Plasmodium falciparum (more dangerous), P. vivax, P. malariae, P. ovale Name the spirochete responsible for causing Lyme Disease. What is the primary vector for this disease? Borrelia burgdorferi; Ixodes pacificus in californa(hard-bodied tick); Ixodes dammini in East & midwest U.S.