Читать книгу Basic Virology - Martinez J. Hewlett - Страница 58

We can use the nature of the virus–host interaction to generate a simple classification of viruses, especially those of humans. These criteria are a useful aid for organizing detailed information concerning diseases with a viral etiology within the context of possible courses and outcomes. A number of specific examples are outlined in this chapter.

Some of the basic criteria that can be incorporated into such a scheme include:

1 Do the symptoms of the viral disease take a short or long time to develop after first encountering the virus?

2 Are the symptoms of initial infection relatively mild or severe?

3 Can the infected individual be expected to recover completely, or partially?

4 Does the virus stay associated with the victim following apparent recovery?

5 If the association is lasting, is the virus maintained in an infectious form either sporadically or constantly?