6 Vaccines Flashcards
Active immunity definition
Your immune system produces its own antibodies after being stimulated by antigens that have entered the body (naturally or artificially)
Natural active immunity example
Infection
Artificial active immunity example
Vaccination
Passive immunity definition
Antibodies made by another organism and not oneself (can be natural or artificial)
Natural passive immunity example
Maternal antibodies via milk and placenta
Artificial passive immunity example
Tetanus injection
Rabies injection
Antivenom
Does active or passive immunity form memory cells
Active
Does active or passive immunity require antigen exposure
Active
Which form of immunity has longer protection
Active
Are antibodies produced in passive immunity
No
Herd vaccination definition
(vaccinate most/all of people) stops infection spreading in a population
Ring vaccination
Definition
Vaccinate only people around victim, contain spread within ring, stops transmission
Trace and isolate contacts and travel restrictions
Pros of vaccinations
Individual is protected against disease
Pool of infected is reduced - good for society
Most common vaccines are cheap
Cons of vaccinations
Some vaccines are cultured in eggs so possible allergic reactions
Very rare extreme immune responses from vaccines can occur causing brain damage or death
Possibly linked to the rise of allergies in children
Concentration of antibodies in blood after first dose of antigen
Concentration rises from 0 to a peak before falling slightly
