Aim: A new strain of human influenza A, known as H1N1, was quickly spread around the world in April 2019 and the World Health Organization increased the warning level to 6 at the beginning of May 2019. Therefore, we are the biggest group of young people hospitalized in Pakistan as a result of the H1N1 pandemic flu contamination. Methods: A multi-center caseload analysis was carried out in 19 independent tertiary clinics in teenagers hospitalized with the flu virus H1N1 contaminated for 2019. Our current research was conducted at Mayo Hospital, Lahore from May 2019 to April 2020. The study examined switch transcriptase polymerase chain response in 19 different tertiary clinics. Results: A total of 828 children with pandemic H1N1 influenza in 2009 were hospitalized. Most of the children admitted (57.8%) were younger than the average age of the population. of 5 years. 300 and 76 children (47.9%) had at least 1 prerequisite. Breathing difficulties Including wheezing, pneumonia, pneumothorax, pneumomediastinum and hypoxemia were observed in 272 (33.2%) children. Of the patients’ admission or referral to PADs (CCUs), 90 (13.3%) and 56 (55.4%) have been obtained by PADs (pediatric intensive care units) (PICU). Mechanical ventilation was helpful (7.6 percent). 35 children (5.6%) were killed. There were no different age rates of death. Sets. Collections. 26.8 percent of those who died were strong before H1N1. The mortality rate was nevertheless high. Cantlie greater, with at least 1 prior and breezed problem in threatened patients, continuous psychiatric disorders, immunosuppressive therapy. Pneumonia and sepsis were the most commonly known causes of mortality. Conclusion: High mortality and IPSU claims of severe respiratory failure was also caused by H1N1 infection in Pakistan in 2009. In fact, complexities occur for children living with a basic disease. Keywords: Psychiatric, Epidemiological Characteristics Infection, Pandemic Influenza A.