Someone told me that two organisms cannot enter the body at one time, for example, you can only be sick with one thng at a time. Can you tell me how two organisms cannot enter the body at the same time??
It is possible for an organism to be infected by two or more infective agents. The term "super-infection" refers to the situation wherein one agent attacks first and a second one complicates the previous infection. For example, a viral infection can be complicated by a bacterial infection. If infective agents attack simulataneously, the situation is called "associated infection". For example, a patient with low immunity (AIDS, leukemia) can be attacked by many infective agents at the same time.
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