every year, millions of moslems depart to saudi arabia from more than one hundred countries around the world for paying to hajj precept. high percentages of these pilgrims suffer from an influenza-like illness (ili). this study was designed and conducted on 32370 iranian pilgrims (36% of total number of iranian pilgrims) to evaluate the incidence of the illness and determination of influenza va...

prolonged cough occurs in a large proportion of the 2 million pilgrims who participate in the annual hajj in saudi arabia. there is no unique cause for pilgrims’ respiratory involvement, but several studies suggest a high incidence of influenza as a cause of the disease. to determine influenza vaccine efficacy against respiratory disease in pilgrims, we conducted two similar cohort studies on 5...

The aims of the study were to determine the attack rate of influenza-like illness among inhabitants of five old folk homes nationwide using influenza vaccine as a probe and the effectiveness of influenza vaccination in prevention of influenza-like illness. We conducted a nonrandomized, single-blind placebo control study from June 2003 to February 2004. VAXIGRIP(R) 2003 Southern hemisphere formu...

This study investigated the relation between weekly levels of influenza activity and the risk of acute influenza-like illness episodes among 8,323 healthy pregnant and postpartum women enrolled in a Puget Sound region, Washington, health maintenance organization, Group Health Cooperative, between June 1991 and December 1997. The authors classified weeks between October and May for isolate activ...

Prospective surveillance for influenza was performed during the 2002 Salt Lake City Winter Olympics. Oseltamivir was administered to patients with influenza like illness and confirmed influenza, while their close contacts were given oseltamivir prophylactically. Influenza A/B was diagnosed in 36 of 188 patients, including 13 athletes. Prompt management limited the spread of this outbreak.

OBJECTIVE To analyze the most related clinical data for influenza and the utility of influenza-like illness criteria as the clinical threshold for sampling in an influenza sentinel surveillance over a 3-year period. METHODS Sentinel physicians collected throat specimens and data from outpatients with acute respiratory infection (< or = 72 hours duration). Laboratory-confirmed influenza infect...