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21. The Prevalence of PCR-Confirmed Pertussis Cases in Palestine From Archived Nasopharyngeal Samples.

Author

Dumaidi, Kamal and Al-Jawabreh, Amer

Subjects
*AGE distribution, *BORDETELLA pertussis, *DNA, *NASOPHARYNX, *WHOOPING cough vaccines, *POLYMERASE chain reaction, *PUBLIC health surveillance, *STATISTICAL sampling, *DISEASE prevalence, *WHOOPING cough, *DIAGNOSIS, *PREVENTION
Abstract

Background: Pertussis caused by Bordetella pertussis is a vaccine-preventable disease causing whooping cough in humans of all ages. This study reports infection rate of pertussis in Palestine between the years 2004-2008 from archived nasopharyngeal samples collected from clinically- suspected cases. Methods: A convenience archived DNA samples collected from 267 clinically-suspected pertussis cases were investigated for B. pertussis. Laboratory diagnosis was done by examining all DNA samples using polymerase chain reaction (PCR). Results: Approximately 49% (130/267) were confirmed by PCR. A pertussis peak was shown to occur in 2008 with 77% (100/130) of PCR-confirmed cases isolated in that year. PCR-confirmed cases existed in all Palestinian districts with highest rate in Ramallah, Bethlehem, Jenin and Al-Khalil. Half of the PCR-confirmed cases (68/130) were less than 2 months old. The positivity rate among who had three doses of vaccine (at 2, 4 and 6 months) was 38%, and became 50% with the fourth dose at 12 months. Conclusion: The prevalence of pertussis was found to be significantly high among infants less than 2 months old. Active pertussis surveillance using rapid PCR assays is essential, as it is helpful in prompt diagnosis and treatment of patients with pertussis. [ABSTRACT FROM AUTHOR]

Published
2018

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