Specific Viruses Flashcards
What are the symptoms of small pox?
Liesions
What causes small pox?
Various virus
What are the three systems small pox travels through?
Transmitted by respiratory, moves through circulatory, causes infection on skin
Where are the only two samples of small pox found?
Us and Russia
What causes chicken pox?
Varicella
What can happen if you get chicken pox as an adult? 2
More serious, can cause fetal damage
How do you get inefected with chicken pox?
Respiratory system
How long does it take until the chicken pox virus is in the skin?
2 weeks
How long will the chicken pox be there?
3-4 days
Where is it common to get chicken pox liesions? 5
Face, throat, lower back, chest, shoulders
Where does shingles hang out on the body?
Dorsal rot ganglia
What can stimulate shingles?
Stress or lowered immune system
How does shingles travel in the body?
Moves along the peripheral nerves to the cutaneous sensory nerves of the skin
What lind of vaccine is available for shingles?
Live attenuated
What viruses cause 50% of colds?
Rhinoviruses
What viruses cause 15-20% of colds?
Corona virus
How many agents have been identified in colds??
Over 200
what is the difference between the flu and a cold?
Fever
What is a quirky characteristic of influenza?
Capable of recombining RNA, creating antigenic shift which are mutations that prevent immunity and memory
What is the reservoir for the hantavirus pulmonary syndrome?
Rodents
What are 8 symptoms of the hantavirus pulmonary syndrome?
Fever, muscle pain, headache, chills, nausea, diarrhea, respiratory distress, hypotension, death
How long does hantavirus pulmonary syndrome take to progress?
A few days - 6 weeks (avg 2 weeks)
How is hantavirus pulmonary syndrome transmitted?
Inhalation of dried rodent droppings
What is a direct way to spread hantavirus pulmonary syndrome?
Infected rodent bites human
What is an indirect way to transmit hantavirus pulmonary syndrome?
Person touches virus, then their face, nose, mouth
What is the vector for EEE and WEE?
Mosquito
What is the reservoir for EEE and WEe?
Song birds
What does arbor virus mean?
Arthropod born virus
How do humans or horses get infected with EEE or wee?
Mosquito bites infected bird then bites human or horse
What does EEE or wee do in the body? 4
Attacks lymph system, replicates macro phases and neutrophils, travels to nervous tissue, causes liesions on tissue
What percent if horses die from EEE and wee?
75-90%
What can you do to diagnose wee or EEE in a live horse?4
History
Serology
Location
Season
What is the treatment for EEE and wee?
Supportive care
When is peak mosquito time?
Early evening
What is orf?
Contagious ecthyma
What is orf/contagious ecthyma also known as?
Sore mouth
Is orf/contagious ecthyma/ sore mouth?
Infectious dermatitis that affects primarily sheep, goats, and cattle
What type of virus is orf considered as?
Parapox
What are symptoms of orf?
Papules formation around lips, nostrils, eyelids, ears of lambs and kids
What are three ways of transmission for orf?
Contaminated bedding or equipment
Feed lots
Direct contact
What type of virus is vesicular stomatitis?
Than soviets and arborvirus
What does vascular stomatitis usually affect? 6
Cattle, horses, swine, sheep goats and llamas
What does vesicular stomatitis get confused with?
Foot and mouth disease
How can vesicular stomatitis be transferred?
Arthropod reservoirs or direct contact
What are symptoms of vesicular stomatitis?
Fever, Papules and vesicles in udders, interdigital, coronary bands
What are for ways to prevent vesicular stomatitis?
Quarantine, isolation, insect control, protective clothing
When is it more likely to get West Nile virus?
Late spring early fall
What are two symptomatic carriers if West Nile virus?
Crows and blue jays
What are 3 a symptomatic carries/natural reservoirs?
Sparrows, finches, perching birds
How us west Nile transmitted?
Bitten by mosquito
What will birds look like with west Nile?
A symptomatic to disorientation, muscle tremors, death
What do horses with west Nile look like?
Us clinical to lethargy, hindquarters weekends, seizures, death
What are six ways to diagnose west mile?
Serology, necropsy, geographical location, season, history
What are three ways to treat west Nile?
Supportive care, steroids, antibiotics
What are two ways to prevent or control west Nile?
Vaccine and mosquito control
What is mad cow disease?
Progressive neurological disorder in cattle due to infectious protien particles
What are prions?
Modified forms of normal protien that become pathogenic and cause brain degeneration
What is mad cow in humans?
Creutzfeldt Jacob
What is mad cow in sheep and goats?
Scrapie
How is mad cow transmitted?
Inherited or ingestion
When will cattle show symptoms of mad cow?
2 years or older
Where does rabies proliferate?
Salivary glands
What is the initial phase of rabies and how long does it last?
Behavioral changes, 1-3 days
What is the excitation phase and how long does it last?
Irrational and aggressive, death in ten days
What is the paralytic stage and how long is it?
Not aggressive, paralysis of throat and jaws, death in ten days
How long. Does it take for a patient to die of rabies?
Usually 2-6 days
