Poliovirus By: Ben Strozyk. Poliovirus  Causes poliomyelitis (aka polio) or infantile paralysis.

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Presentation transcript:

Poliovirus By: Ben Strozyk

Poliovirus  Causes poliomyelitis (aka polio) or infantile paralysis

Discovery  In 1909 by Karl Landsteiner and Erwin Popper (his assistant)

Type of Genetic Material  Positive-sense single-stranded RNA  From the enterovirus family  spreads quickly and attacks nervous system

Specific Structural Information  Only has a non-enveloped icosahedral protein coat

Types of Polio  Subclinical poliomyelitis (95% of all cases)  General discomfort or uneasiness (malaise)  Headache  Red throat  Slight fever  Sore throat  Vomiting

Types of Polio  Paralytic Poliomyelitis  Fever (early)  Constipation  Breathing/ Swallowing difficulty  Muscle spasms (calf, neck, or back)  Muscle pain  Muscle weakness

Transmission  Direct human to human contact  Infected feces or mucus/phlegm

Polio Incidences  Cases in U. S.  ,000 cases and 3,000 deaths (peak)

People Affected by Polio  The greatest risk of contracting it is in India and Western/Central Africa

Mostly likely to Effect….  Children, pregnant women, and the elderly  In the summer and in the fall when fall arrives

Vaccines  inactivated poliovaccine (IPV)  Created by Jonas Salk (1952)  oral polio vaccine (OPV)  Created by Albert Sabin (1957)  weakened virus  90% effective overall

Sources   polio.html polio.html  