The Incidence of Bordetella Pertussis Infections in Jahrom City, Southern Iran

Background: Bordetella Pertussis, known as the causative agent of whooping cough, is one of the leading causes of recurrent persistent cough at all ages, even in vaccinated individuals. Methods: A total number of 110 patients coughing for at least two weeks who were admitted to clinical centers in Jahrom, Iran, were included in this cross-sectional study. For this purpose, blood samples were collected from these individuals at two stages, i.e., at the beginning of the study and on the 21st day. Afterward, anti-pertussis toxin (PT) immunoglobulin G (IgG) was measured in serum samples via the enzyme-linked immunosorbent assay (ELISA). The given cases were further evaluated in terms of age, gender, occupation, place of living, and family size.Results: Out of 110 patients recruited in this study, 77 cases were female (70%). Also, only seven patients were shown to be serologically positive (6.4%). Moreover, no significant association was observed between pertussis incidence rate and the study variables, namely, age, gender, occupation, residency area (urban or rural), and family size (p>0.05).Conclusions: This study aimed to emphasize pertussis occurrence in individuals who merely present persistent cough without typical symptoms. This requires the physicians to conduct more precise assessments along with more rapid diagnostic methods.