Clinical and Epidemiological Profile of Pandemic Influenza A H1N1, H3N2, and Type B in the Southeast of Caspian Sea, Iran

Javid, Naeme; Moradi, Abdolvahab; Tabarraei, Alijan

doi:10.5812/jjm.35616

Cited by 6 publications

(7 citation statements)

References 19 publications

(16 reference statements)

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“…Another study in Gorgan, Iran by Javid et al showed that among 790 suspected cases for influenza, pandemic A H1N1, A/H3N2, and influenza B viruses were confirmed in 3.2%, 2.7%, and 2.8%, respectively. In their survey, the greatest number of confirmed cases with RT-PCR occurred in the age group of 25-34 years (30). In our study, the highest prevalence (39%) occurred in the age range of 40-59 years.…”

Section: Discussionsupporting

confidence: 47%

Epidemiology and Clinical Outcomes of Patients with Confirmed Influenza in Mashhad, Iran in 2019

et al. 2021

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Background: Influenza is a contagious and acute viral disease caused by influenza viruses involving upper and lower respiratory tract system, especially in the cold seasons. Children aged less than 5 years old, elderly people, immunocompromised patients, pregnant women, and people with certain health conditions are at a higher risk for the disease and severe complications. Objectives: Due to the serious complications of influenza in certain groups, it is important to know which group of people are more at risk and need prevention strategies. This study aimed to investigate the patients with confirmed influenza, identify the people who are at a higher risk for infection, and assess the clinical outcomes of disease among patients. Methods: In this cross-sectional and descriptive study, we studied the files of all patients with confirmed influenza referred to the health centers in Mashhad, Iran, during autumn and winter of 2019 when influenza virus was prevalent. The disease was confirmed by reverse transcription polymerase chain reaction (RT-PCR) method. We studied all registered data related to the flu, including gender, age, residency, history of vaccination, risk factors, complications, and clinical outcomes. Results: In this study, 2977 patients (3% outpatients vs. 97% hospitalized) with flu like syndrome were tested by RT-PCR for influenza. Out of 84 outpatients, only two cases were positive for influenza. Among hospitalized patients, 80 cases (51% male vs. 49% female; age range: 1 - 87 years) had a positive RT-PCR test, and influenza type A was seen in 95% of cases. Pneumonia was the most common complication. Death happened in 29 (35.36%) patients and three (33.33%) cases with risk factors. The highest number of influenza patients (31 [37.8%]) had been reported from district No. 3 of Mashhad municipality, which is a crowded place and near the holy shrine. Conclusions: The results showed a high prevalence of complication and death among hospitalized patients, especially among those who did not have a risk factor for influenza viruses. Comprehensive vaccination programs and promotion of knowledge about transmission routes are two important measures for disease prevention and lower death rates.

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Section: Discussionsupporting

confidence: 47%

Epidemiology and Clinical Outcomes of Patients with Confirmed Influenza in Mashhad, Iran in 2019

et al. 2021

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“…Possible viral respiratory pathogens which might cause RTI outbreaks in survivors affected by recent floods could be predictable based on the annual epidemics and history of viruses’ circulation. In early spring in Iran, influenza viruses and respiratory syncytial virus circulations were reported in previous years in Khuzestan and Golestan (9–11). Among other viral causes of RTI, adenoviruses are common in the late winter, spring, and early summer, consequently adenoviruses might circulate in affected population.…”

Section: Introductionmentioning

confidence: 94%

Possible viral infections in flood disasters: a review considering 2019 spring floods in Iran

Yavarian¹,

Shafiei-Jandaghi²,

Mokhtari‐Azad³

2019

IJM

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Floods are one of the natural disasters occurring worldwide which have a massive range of health impacts. In addition to immediate dangers such as drowning, floods can increase the transmission of some communicable diseases. Up to now there was no report of viral infection outbreaks after 2019 spring floods in Iran. This review explains the possible viral infections which may occur during or after floods.

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“…25 Javid et al reported the prevalence of A/H1N1, A/H3N2, and B influenza at 2.7%, 2.8%, and 3.2%, respectively in the Golestan Province, Iran from 2010 to 2014. 11 In the study by Afrasiabian et al, A/H1N1 was confirmed in 14.8% of the patients. 8 Mozhgani et al, in a metaanalysis on the prevalence of influenza in the Middle East, reported an overall prevalence of 10.2%, which was lower than the results of the present study.…”

Section: Discussionmentioning

confidence: 89%

Epidemiology of Influenza in Fars Province, Southern Iran; a Population-Based Study (2015–2019)

et al. 2021

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Background: Influenza is one of the most important viral diseases with high mortality and morbidity that can have a great impact on public health and economy. Objective: To investigate the clinical and epidemiological features of influenza virus A/H1N1, A/H3N2, and B infection in Fars province, southern Iran, in 2015-2019. Methods: In this retrospective cross-sectional study, we assessed the archived data of

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Clinical and Epidemiological Profile of Pandemic Influenza A H1N1, H3N2, and Type B in the Southeast of Caspian Sea, Iran

Abstract: Background: Timely diagnosis of influenza virus is important because this virus can cause severe illness. The 2009 pdmH1N1 influenza virus spread rapidly throughout the world as the first infectious pandemic of the 21st century.

Cited by 6 publications

References 19 publications

Epidemiology and Clinical Outcomes of Patients with Confirmed Influenza in Mashhad, Iran in 2019

Epidemiology and Clinical Outcomes of Patients with Confirmed Influenza in Mashhad, Iran in 2019

Possible viral infections in flood disasters: a review considering 2019 spring floods in Iran

Epidemiology of Influenza in Fars Province, Southern Iran; a Population-Based Study (2015–2019)

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