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/ http://irep.iium.edu.my/30760/ http://irep.iium.edu.my/30760/ http://irep.iium.edu.my/30760/1/A_case_control_study_1-s2.0-S1201971203900543-main.pdf

id	iium-30760
recordtype	eprints
spelling	iium-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 PeerReviewed 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
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
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/ http://irep.iium.edu.my/30760/ http://irep.iium.edu.my/30760/ http://irep.iium.edu.my/30760/1/A_case_control_study_1-s2.0-S1201971203900543-main.pdf
first_indexed	2023-09-18T20:44:59Z
last_indexed	2023-09-18T20:44:59Z
_version_	1777409615478128640

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

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