Transcript Viruses
Viruses
Core genetic material (DNA or RNA) enclosed in a
capsid
Poliomyelitis (Polio)
Film: “The Polio Crusade”
Polio = gray; Myelon = marrow of spinal cord; itis =
inflammation
Highly contagious
May result in paralysis
Vaccine preventable
Polio Eradication
Is it possible??
“Hopefully by 2015 no child in the world will be
paralyzed by the disease and by 2018 Polio will be
wiped out.” – Bill Gates, 09/28/2012
The current eradication program…
Rotavirus
Most common cause of
diarrhea in infants and
children.
Highly contagious
Symptoms:
Severe diarrhea,
vomiting; may lead to
dehydration
Measles / Rubella
Common childhood
illness until vaccine.
May be fatal
Characterized by fever
and rash
Highly contagious
through respiratory
droplets.
Mumps
Highly contagious,
spread by respiratory
droplets.
Symptoms: malaise,
headache, low-grade
fever, parotitis (enlarged
salivary glands)
Chicken Pox / Shingles
Varicella zoster virus
Herpes zoster virus
Characterized by rash,
fever, malaise.
Contagious, spread by
respiratory droplets
Vaccines
Active immunity
Dead or deactivated dose of bacteria or virus injected
Passive immunity
Preformed antibodies from immune serum of animal
injected.
Acquired immunity
Immune system fights live bacteria or virus
Vaccines….
A loaded topic
What’s the truth?