Whooping cough--a study of severity in hospital cases.

Severity of whooping cough in England before and after the decline in pertussis immunisation.

Since the decline of pertussis immunisation, hospital admission and death rates from whooping cough have fallen unexpectedly. Although this might be taken to indicate that the disease is becoming less severe, a comparison of admissions and deaths in England and Wales before and after the decline in immunisation suggests that several factors other than disease severity--a shift in the social cla...

بررسی تشکیل بیوفیلم در ایزوله‌های بوردتلا پرتوسیس با روش in vitro biofilm formation

Background and Objective: Bordetella pertussis is a gram-negative cocobacilli bacterium and etiologic agent of whooping cough that in recent years, the number of its cases is on the rise. The ability of biofilm production helps this bacterium in interference with host immune system, severity of illness and antibiotic sensitivity. Thus, due to the importance of this factor, in this investigation...

Preparation and Evaluation of Stained Pertussis Antigen for Serodiagnosis of Whooping Cough

Epidemiologic Studies in Whooping Cough *

The following procedures were employed in the three studies: (I ) Cases of diagnosed or suspected whooping cough reported by the New Haven Hospital Dispensary or, occasionally, by the local health department or by practitioners were investigated. (2) The families of the diagnosed cases were seen and cough-plates were made from each member of the family. (3) Answers to specific questions pertain...

Whooping cough in school age children with persistent cough: prospective cohort study in primary care.

OBJECTIVE To estimate the proportion of school age children with a persistent cough who have evidence of a recent Bordetella pertussis infection. DESIGN Prospective cohort study (October 2001 to March 2005). SETTING General practices in Oxfordshire, England. PARTICIPANTS 172 children aged 5-16 years who presented to their general practitioner with a cough lasting 14 days or more who conse...