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A case-control study of influenza vaccine effectiveness among Malaysian pilgrims attending the Haj in Saudi Arabia

Objectives: To determine influenza vaccine effectiveness against clinically defined influenza-like illness among Malaysian pilgrims attending the Haj in Saudi Arabia. Methods: During February and March 2000, the authors conducted an unmatched case-control study. Case patients were identified at o...

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Main Authors: Mustafa, Amal Nasir, Abdullah, Nasuruddi, Bradford D, Gessner, Raman, Ismail, Yusoff, Ahmad Faudzi, Ishak, Ilina, Mohd Ismail , Merican
Format: Article
Language:English
Published: Elsevier 2003
Subjects:
R Medicine (General)
Online Access:http://irep.iium.edu.my/30760/1/A_case_control_study_1-s2.0-S1201971203900543-main.pdf
http://irep.iium.edu.my/30760/
http://www.ijidonline.com/article/S1201-9712(03)90054-3/abstract
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spelling my.iium.irep.307602013-08-13T07:27:06Z http://irep.iium.edu.my/30760/ A case-control study of influenza vaccine effectiveness among Malaysian pilgrims attending the Haj in Saudi Arabia Mustafa, Amal Nasir Abdullah, Nasuruddi Bradford D, Gessner Raman, Ismail Yusoff, Ahmad Faudzi Ishak, Ilina Mohd Ismail , Merican R Medicine (General) Objectives: To determine influenza vaccine effectiveness against clinically defined influenza-like illness among Malaysian pilgrims attending the Haj in Saudi Arabia. Methods: During February and March 2000, the authors conducted an unmatched case-control study. Case patients were identified at one of five hotel clinics, while controls were residents of these hotels who had not attended a clinic. Results: Among 820 case patients–84% of whom had received antibiotics—and 600 controls, the adjusted vaccine effectiveness against clinic visits for influenza-like illness was 77% (95% confidence interval: 69,83), and that against receipt of antibiotics was 66% (95% confidence interval, 54, 75). The vaccine did not prevent clinic visits for non-influenza-like upper respiratory tract illness (adjusted vaccine effectiveness, 20%; 95% confidence interval: −24,49). Conclusions: Influenza vaccine was effective in preventing clinic visits for influenza-like illness and antibiotic use. Pilgrims traveling to the Haj in Saudi Arabia should consider influenza vaccination use. Elsevier 2003-09 Article REM application/pdf en http://irep.iium.edu.my/30760/1/A_case_control_study_1-s2.0-S1201971203900543-main.pdf Mustafa, Amal Nasir and Abdullah, Nasuruddi and Bradford D, Gessner and Raman, Ismail and Yusoff, Ahmad Faudzi and Ishak, Ilina and Mohd Ismail , Merican (2003) A case-control study of influenza vaccine effectiveness among Malaysian pilgrims attending the Haj in Saudi Arabia. International Journal of Infectious Diseases, 7 (3). pp. 210-214. ISSN 1201-9712 http://www.ijidonline.com/article/S1201-9712(03)90054-3/abstract 10.1016/S1201-9712(03)90054-3
institution Universiti Islam Antarabangsa Malaysia
building IIUM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider International Islamic University Malaysia
content_source IIUM Repository (IREP)
url_provider http://irep.iium.edu.my/
language English
topic R Medicine (General)
spellingShingle R Medicine (General)
Mustafa, Amal Nasir
Abdullah, Nasuruddi
Bradford D, Gessner
Raman, Ismail
Yusoff, Ahmad Faudzi
Ishak, Ilina
Mohd Ismail , Merican
A case-control study of influenza vaccine effectiveness among Malaysian pilgrims attending the Haj in Saudi Arabia
description Objectives: To determine influenza vaccine effectiveness against clinically defined influenza-like illness among Malaysian pilgrims attending the Haj in Saudi Arabia. Methods: During February and March 2000, the authors conducted an unmatched case-control study. Case patients were identified at one of five hotel clinics, while controls were residents of these hotels who had not attended a clinic. Results: Among 820 case patients–84% of whom had received antibiotics—and 600 controls, the adjusted vaccine effectiveness against clinic visits for influenza-like illness was 77% (95% confidence interval: 69,83), and that against receipt of antibiotics was 66% (95% confidence interval, 54, 75). The vaccine did not prevent clinic visits for non-influenza-like upper respiratory tract illness (adjusted vaccine effectiveness, 20%; 95% confidence interval: −24,49). Conclusions: Influenza vaccine was effective in preventing clinic visits for influenza-like illness and antibiotic use. Pilgrims traveling to the Haj in Saudi Arabia should consider influenza vaccination use.
format Article
author Mustafa, Amal Nasir
Abdullah, Nasuruddi
Bradford D, Gessner
Raman, Ismail
Yusoff, Ahmad Faudzi
Ishak, Ilina
Mohd Ismail , Merican
author_facet Mustafa, Amal Nasir
Abdullah, Nasuruddi
Bradford D, Gessner
Raman, Ismail
Yusoff, Ahmad Faudzi
Ishak, Ilina
Mohd Ismail , Merican
author_sort Mustafa, Amal Nasir
title A case-control study of influenza vaccine effectiveness among Malaysian pilgrims attending the Haj in Saudi Arabia
title_short A case-control study of influenza vaccine effectiveness among Malaysian pilgrims attending the Haj in Saudi Arabia
title_full A case-control study of influenza vaccine effectiveness among Malaysian pilgrims attending the Haj in Saudi Arabia
title_fullStr A case-control study of influenza vaccine effectiveness among Malaysian pilgrims attending the Haj in Saudi Arabia
title_full_unstemmed A case-control study of influenza vaccine effectiveness among Malaysian pilgrims attending the Haj in Saudi Arabia
title_sort case-control study of influenza vaccine effectiveness among malaysian pilgrims attending the haj in saudi arabia
publisher Elsevier
publishDate 2003
url http://irep.iium.edu.my/30760/1/A_case_control_study_1-s2.0-S1201971203900543-main.pdf
http://irep.iium.edu.my/30760/
http://www.ijidonline.com/article/S1201-9712(03)90054-3/abstract
_version_ 1643609934201356288
score 13.211869

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