| With antimicrobials our expectation is that the infecting pathogen will be killed, but the myriad normal bacteria are also exposed. |
| The bacteria pneumococcus, with more than 90 serotypes, is a common pathogen with many unknowns. |
| Malaria, introduced after 1650, became the Chesapeake's most virulent pathogen. |
| Plants require dominant or semidominant resistance gene alleles to specifically recognize pathogen ingress. |
| Proactive primary prevention presumes that the pathogen can be attenuated or prevented from reaching the individual. |
| Higher plants have developed several elaborate mechanisms to ward off pathogen attack. |
