Influenza A (H1N1) incidence in India, which is a highly contagious acute respiratory disease in humans caused by type A influenza virus. This study employs retrospective comparative study of the data from National Centre for Disease Control (CDC) yearly reports from April-2010 to April-2019. The case fatality rates of Influenza A (H1N1) incidence in India was forecasted using autoregressive integrated moving average (ARIMA) models in order to build a predictive tool for Influenza A (H1N1) surveillance. Clearly from the study, lack of rainfall spread the virus more efficiently and Maharashtra stood first in total number of cases and deaths of Influenza A(H1N1) whereas Lakshadweep had no signs of disease. Further, number of Cases were reported in the year 2015 (i.e. 28%) and 25% of cases have been reported in 2017 when compared to ten years data. (ARIMA) (2, 1, 3) model was selected for its minimum value of normalized BIC, MAPE and good R-Square among all other models. The model forecasted the decrease in case fatality rate of Influenza A H1N1 for next 10years. Thus, results indicate that, ARIMA models provide a means to better understand Influenza A (H1N1) incidence yielding forecasts that can be used for public health planning at the national level.
ARIMA, case fatality rate (CFR), contagious, forecasts, Influenza A (H1N1), predictive tool
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