کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10963710 | 1102691 | 2015 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Pertactin negative Bordetella pertussis demonstrates higher fitness under vaccine selection pressure in a mixed infection model
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
ایمنی شناسی و میکروب شناسی
ایمونولوژی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Pertactin negative Bordetella pertussis demonstrates higher fitness under vaccine selection pressure in a mixed infection model Pertactin negative Bordetella pertussis demonstrates higher fitness under vaccine selection pressure in a mixed infection model](/preview/png/10963710.png)
چکیده انگلیسی
Whooping cough or pertussis is a highly infectious respiratory disease in humans caused by Bordetella pertussis. The use of acellular vaccines (ACV) has been associated with the recent resurgence of pertussis in developed countries including Australia despite high vaccination coverage where B. pertussis strains that do not express pertactin (Prn), a key antigenic component of the ACV, have emerged and become prevalent. In this study, we used an in vivo competition assay in mice immunised with ACV and in naïve (control) mice to compare the proportion of colonisation with recent clinical Prn positive and Prn negative B. pertussis strains from Australia. The Prn negative strain colonised the respiratory tract more effectively than the Prn positive strain in immunised mice, out-competing the Prn positive strain by day 3 of infection. However, in control mice, the Prn positive strain out-competed the Prn negative strain. Our findings of greater ability of Prn negative strains to colonise ACV-immunised mice are consistent with reports of selective advantage for these strains in ACV-immunised humans.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Vaccine - Volume 33, Issue 46, 17 November 2015, Pages 6277-6281
Journal: Vaccine - Volume 33, Issue 46, 17 November 2015, Pages 6277-6281
نویسندگان
Azadeh Safarchi, Sophie Octavia, Laurence Don Wai Luu, Chin Yen Tay, Vitali Sintchenko, Nicholas Wood, Helen Marshall, Peter McIntyre, Ruiting Lan,