پاورپوینت درباره Bordetella pertussis

فرمت فایل : powerpoint (لینک دانلود پایین صفحه) تعداد صفحات107 صفحه         •The incubation period of pertussis is usually 7 to 10 days, with a range of 4 to 21 days.   •The clinical course of illness is divided into three stages.( age, vaccination, waning)   1/ The catarrhal stage is characterized by the onset of runny nose, sneezing, low-grade fever, and a mild cough. Cough gradually becomes more severe (1-2 weeks)   •   ...