Clinical profile and outcome of admitted pediatric patients with Influenza

Background@#Influenza is one of the most common illnesses pediatricians face. Children are especially at risk for contracting influenza. Aside from fever, cough and colds, the disease may present differently in children. Complications due to influenza are varied and anti-virals may be useful if given early in the course of illness. @*Objectives@#To determine the clinical profile of admitted pediatric patients with influenza based on rapid testing and determine its prevalence, outcome and complications. @*Methods@#Cross sectional study of pediatric patients who had nasopharyngeal swab for influenza by antigen rapid detection test were included. Retrospective chart review was done on patients with influenza-like illness admitted from 2013-2019. @*Results@#There were 244 patient charts reviewed, the mean age of patients was 5 – 9 years old and majority had no influenza vaccine during the year of admission. Patients presented with fever, cough, colds and non-specific symptoms. Ear pain, difficulty of breathing and myalgia were found to be associated with a positive influenza infection. Of the 244 suspected patients, 133 (54%) were positive for influenza rapid testing, 33% were influenza B positive and 21.3 % were influenza A positive. The most common clinical complication for influenza positive patients was pneumonia. 1 patient had respiratory failure, 5 had febrile convulsions and 7 developed viral myositis. 19% of the subjects had asthma as co-morbidity. Only 11% of the population had their annual influenza vaccine. @*Conclusion@#54% of pediatric patients tested for influenza had positive tests for either Influenza A or B. Although generally a mild illness, it contributes to morbidity and mortality in children. Complications are not uncommon in the pediatric population as seen in this study. Vaccination remains an important preventive measure to curb influenza cases.

Influenza A(H1N1)pdm09 cases in sub‑Himalayan region, 2014–2015 India.

Current influenza A(H1N1)pdm09 strain severely involved many parts of the country. The study was conducted to analyze the clinicoepidemiological trend of influenza A(H1N1)pdm09 cases from October 2014 to March 2015. Samples processing was done as per the Center for Disease Control guidelines. A total of 333 specimens were processed out of which influenza A(H1N1)pdm09 constituted 24% (81) of total, 5% (18) cases were seasonal influenza A virus strains. Mean age group involved was 49 years with case fatality rate of 20%. Patients died were 63% males and 44% had comorbidities, and among them, 38% patients died within 24 h of hospitalization. The mean age of comorbid patients who died was 59 years; whereas the mean age of patients died having no co‑morbidities was 41 years (P < 0.005). Mortality was seen among 81% (13) of patients who were on ventilator support. Added mortality in specific human group demands continuous surveillance monitoring followed by the detection of mutation, even in susceptible animal population.