健谈 发表于 2025-3-25 06:16:33
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Vaccines and Schedules,In this chapter, the types of vaccines which are generally available and suitable schedules for routine immunisation will be outlined.Generalize 发表于 2025-3-25 20:39:44
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Poliomyelitis,Although poliomyelitis has been endemic for centuries it was not till about 80 years ago that it first became an epidemic disease, first in Scandinavia and later in the USA where regular epidemics occurred from the early 1900s until the mid-1950s when immunisation was introduced.无法破译 发表于 2025-3-26 06:23:40
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is book takes into account the need for a simple, concise account of immunisation procedures not only in the UK and USA but also in other countries, and to this end a special chapter on immunisation in developing countries has been included. Following two introductory chapters, there are nine chapte沟通 发表于 2025-3-26 14:13:43
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Smallpox,controlled, in spite of the fact that the herd immunity in recent years has only been about 10 per cent, for the number of infant vaccinations had been steadily declining since the beginning of the century when about three-quarters of the infants in Britain were vaccinated.