By Alfred S. Evans (auth.), Alfred S. Evans, Harry A. Feldman (eds.)
This is a significant other quantity to Viral Infections of people: Epidemiology and regulate. the plain luck of that e-book in bridging the distance among texts on simple microbiology and people on medical infectious illnesses resulted in enhancing this one on bacterial infections, the chapters of that are equipped in precisely an analogous layout of 12 devices: creation, ancient historical past, method, organic features of the organism, descriptive epidemiology, mechanisms and routes of transmission, pathogenesis and im munity, styles of host reaction, keep watch over and prevention, unresolved difficulties, references, and prompt interpreting. the aim of this publication is to supply an outline and knowing of the pathogenesis of an infection and ailment either in the group and in the person. this can be performed within the trust number of components in either the exterior and the interior surroundings, and within the nature of the infectious agent, effect publicity, the improvement of an infection, and the development of the host reaction. An figuring out of the epidemiology and pathogenesis of those procedures types the foundation for ways to manage and prevention. the 1st chapters of this e-book take care of common epidemiological suggestions and with surveillance.
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Additional info for Bacterial Infections of Humans: Epidemiology and Control
Whom are under continued surveillance. In infectious diseases, data on the host characteristics of interest, appropriate microbiological specimens, and sera are usually collected for analysiS at the start of the study. The subsequent occurrence of infection or disease can then be measured in terms of pertinent variables such as exposure, age, sex, and immune status. , the number of infections or disease onsets in a given period of time per initial number at risk of a given age, immune status, or other characteristic.
The factors that result in disease in an infected person are mostly determined by the host, as discussed in Section 6. Those that relate to the organism are invasiveness, the production of toxins, and the induction of an immune response that usually is beneficial but sometimes is detrimental to the host. Invasiveness does not always correlate with disease and a widely disseminated organism does not Table 6. Bacterial Characteristics of Epidemiological Importancea Epidemiological aspects 1. Features involved in spread through the environment 2.
This is espeCially true of tetanus, since antitoxin is acquired almost solely through immunization and rarely, if at all, through natural infection. The use of serological surveys in areas where medical care, diagnostic facilities, and reporting practices are inadequate may provide information essential for the control and evaluation of immunization programs. The uses, advantages, and disadvantages of serological surveillance and seroepidemiology for virus infections are presented in Chapter 2 of the companion book.