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...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2003
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/30760/1/A_case_control_study_1-s2.0-S1201971203900543-main.pdf |
| _version_ | 1825647365132910592 |
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| 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 |
| collection | IIUM |
| 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. |
| first_indexed | 2024-03-05T23:16:31Z |
| format | Article |
| id | oai:generic.eprints.org:30760 |
| institution | International Islamic University Malaysia |
| language | English |
| last_indexed | 2024-03-05T23:16:31Z |
| publishDate | 2003 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | oai:generic.eprints.org: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 |
| 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 |
| title | 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_short | 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 |
| topic | R Medicine (General) |
| url | http://irep.iium.edu.my/30760/1/A_case_control_study_1-s2.0-S1201971203900543-main.pdf |
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