RNA Viruses (cont.) Flashcards
2 RNA viruses that cause Diarrhea?
Norovirus
Rotovirus
What RNA virus tends to cause Diarrhea on cruise ships?
Norovirus
Rabies is a ____ shaped RNA
Bullet
How is Rabies transmitted?
Through the bite and saliva of a warm blood animal
From the bite of a Rabies infected animal, how does the disease progress?
It travels up the nerve axon to reach the CNS
Symptoms of a Rabies infection?
Hydrophobia, agitation, aggression, paralysis, death
Hydrophobia
Intense fear of swallowing water due to it causing throat spasms
- seen with rabies infection
Rabies is almost always ____
Fatal
4 Flaviviridae?
Yellow Fever
Dengue Fever
Zika Virus
West Nile Virus
Flaviviridae are caused by?
Mosquitos
Yellow Fever
- Caused by mosquito
= Jaundice and hepatitis
Dengue Fever
- Caused by mosquito
= Break-bone fever
Zika Virus
- Caused by mosquito
= fever, rash and joint pain
Zika Virus is especially dangerous for?
Babies in utero
What will the Zika virus cause in babies in utero?
Microcephaly
West Nile Virus
- Caused by mosquitos
= Fever, headache, meningitis
What does the Polio Virus attack?
Anterior motor neurons
Polio Virus symptoms/cascade?
- Aseptic Meningitis
- Flaccid Symmetric paralysis
= Loss of reflexes, paresthesia and ‘plegias
Aseptic Meningitis that causes flaccid symmetric paralysis?
Polio Virus
HIV
Human Immunodeficiency Virus
Most common cause of HIV worldwide?
Heterosexual contact
Most common cause of HIV in the U.S?
Homosexual contact
- needle sticks, perinatal transmission as well
What cells does HIV bind and kill?
CD4+ T cells
What is the diagnostic factor of HIV?
P24 caspid
P24 caspid diagnoses?
HIV
P24 caspid diagnoses?
HIV
How long after exposure to HIV will symptoms arise?
1 month after
What are the first symptoms with HIV?
Mononucleosis like = sore throat, fever, lymphadenopathy
When is the latency period with HIV?
7-8 years after initial symptoms
Once the latency period is done for HIV, what symptoms arise?
More lymphadenopathy
Weight loss and night sweats
As the CD4+ T cell count DECREASES, opportunistic infections will ____
INCREASE
What defines AIDS?
Less than 200 CD4+ T cells
Less than 200 CD4+ T cells
AIDS
AIDS
Acquired Immunodeficiency Syndrome
What 3 neoplasias are those with HIV at risk for?
B cell lymphomas
Kaposi Sarcoma
Cervical Carcinoma
HIV (+) with B cell lymphoma must have?
Epstein - Barr Virus
HIV (+) with Kaposi Sarcoma must have?
HHV-8
HIV (+) with Cervical Carcinoma must have?
Human Papilloma Virus
