immunity znaczenie & definicja

Przykłady immunity

• A good model system for studies on invertebrate immunity is the investigation of immunity to parasites.

• Examination of eels on day 112 revealed no indication for acquired immunity resulting from the primary infection.

• The presence of dead parasites may not confer an acquired immunity to re-infection.

• For example, as the prevalence in dogs becomes lower the probability of immunity on exposure is decreased.

• The next step is to extend these analyses to a more realistic model having both natural immunity and vaccine effects.

• Above 20 % immunity the number of cases required increases dramatically.

• The pathogenesis of necrotic proliferative colitis in swine is linked to whipworm induced suppression of mucosal immunity to resident bacteria.

• We do not know exactly what the levels of effective immunity are in the population.