Seasonality of tuberculosis in India: is it real and what does it tell us?

Thorpe, Lorna E.; Frieden, Thomas R.; Laserson, Kayla F.; Wells, Charles D.; Khatri, G.R.

doi:10.1016/s0140-6736(04)17316-9

Cited by 102 publications

(114 citation statements)

References 4 publications

(4 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In another study about the seasonal pattern of TB in the native Iranian population, it was shown that TB had a seasonal pattern and its peak was on the 14 th of June (29). In studies conducted on native populations of other countries, the peak incidence of this disease was summer in Britain (17) and Hong Kong (18); spring and summer in Taiwan (23) and Ireland (24); spring and late fall with the peak being in March in the United States (25); summer in Japan (24); late winter and spring in Spain (in a study carried out by Luqureo et al) (20); summer and autumn in a study by Rios et al (16); spring and summer in South Africa (in a study by Fares et al) (24); and late winter and early spring in a study by Schaaf et al (21). In north of India (17), the peak incidence of TB was in spring and summer (highest in April and June, and lowest in October and December), while no seasonal pattern was observed in the south of India (10).…”

Section: Discussionmentioning

confidence: 99%

“…Finally, season reflects when registration of disease is high thus, suitable programming can be provided (16)(17)(18). It has been proven that the incidence of most respiratory infections has seasonal changes and this seasonal pattern has been confirmed in most studies that have examined the seasonal pattern of TB incidence (15,(17)(18)(19)(20)(21)(22)(23)(24)(25). However, there is little documentation regarding the seasonal pattern of TB among emigrant populations.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Does tuberculosis have a seasonal pattern among migrant population entering Iran?

Moosazadeh

Khanjani

Bahrampour

et al. 2014

Int J Health Policy Manag

View full text Add to dashboard Cite

Background: There are few quantitative documents about the seasonal incidence of tuberculosis (TB) among immigrant populations. Concerning the significant role of recognizing seasonal changes of TB in improving the TB control program, this study determines the trend and seasonal temporal changes of TB among immigrants entering Iran. Methods: In this longitudinal study, data from the Iranian TB register Program (from 2005 to 2011) was used. The aggregated number of monthly and seasonal TB cases was obtained by adding the daily counts. Data was analyzed by Chi-square, Independent T-test, ANOVA, and Poisson regression using Stata 11 and SPSS 20 software. Results: Among 74,155 registered patients with TB, 14.3% (10,587) were non-Iranian who had immigrated to Iran from 29 different countries. The highest aggregated number of seasonal and monthly incidence of TB in immigrants was observed in spring (2824, P= 0.007) and in May (1037, P< 0.001). The number of non-Iranian patients with TB increased significantly over the years (β= 0.016, P= 0.001). Conclusion: This study shows that immigrants constitute a significant portion of TB patients recorded in Iran and this trend is increasing. Also, the peak incidence of this disease is the second month of the spring.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Does tuberculosis have a seasonal pattern among migrant population entering Iran?

Moosazadeh

Khanjani

Bahrampour

et al. 2014

Int J Health Policy Manag

View full text Add to dashboard Cite

show abstract

“…Furthermore, case notifications reach the trough as early as September when temperatures are still around 10uC degrees above zero. In India, seasonality in case notifications was not attributed to health-seeking behaviour [22].…”

Section: Discussionmentioning

confidence: 99%

Seasonality of tuberculosis in an Eastern-Asian country with an extreme continental climate

Naranbat

Nymadawa²,

Schopfer³

et al. 2009

European Respiratory Journal

View full text Add to dashboard Cite

Aggregate monthly notifications of incident sputum smear-positive tuberculosis (TB) in Mongolia, stratified by sex and age groups, were analysed separately for Ulaanbaatar, Mongolia, and the rest of the country for the 9-yr period from 1998 to 2006. TB notifications were compared with ambient surface temperature.More than twice as many TB cases were notified in the peak month (April) compared with the trough months (October-December), paralleling the temperature curve. The fluctuations recurred consistently over the entire observation period, were identical in the capital compared with the rest of the country, and were independent of age and sex.TB notifications parallel the temperature amplitudes and have a magnitude not reported elsewhere. We hypothesise that the influence of temperature on life either indoors or outdoors is consistent with the transmission probability of Mycobacterium tuberculosis and the subsequent delay to disease recognition and notification with the incubation period, possibly co-determined by other factors, rather than accessibility to services.

show abstract

“…However, in India, which bears one-third of the world's TB burden [2], the myths and the stigma revolving around TB and its treatment have to be targeted to improve TB control. In India, patients with TB often experience rejection and social isolation.…”

Section: Living With Tuberculosis: the Myths And The Stigma From The mentioning

confidence: 99%

Living with Tuberculosis: The Myths and the Stigma from the Indian Perspective

Mathew

Takalkar

2007

Clinical Infectious Diseases

View full text Add to dashboard Cite

Seasonality of tuberculosis in India: is it real and what does it tell us?

Cited by 102 publications

References 4 publications

Does tuberculosis have a seasonal pattern among migrant population entering Iran?

Does tuberculosis have a seasonal pattern among migrant population entering Iran?

Seasonality of tuberculosis in an Eastern-Asian country with an extreme continental climate

Living with Tuberculosis: The Myths and the Stigma from the Indian Perspective

Contact Info

Product

Resources

About