RESUMO
Background: Influenza, commonly referred to as the flu, is an infectious disease caused by RNA viruses of the family Orthomyxoviridae (the influenza viruses). Swine flu cases resurfaced in month of January 2015 in Southern region of India which are continuation of pandemic 2009. Aim of this study is to summaries the clinical and epidemiological factors associated with swine flu as well as to estimate the burden of Influenza A H1N1 (Swine Flu) cases.Methods: A complete data of all the patients visiting swine flu OPDs, swine flu wards and ICU were maintained for year 2015. Each patient visiting either the swine flu OPD or the swine flu ward, who was suspected clinically to be H1N1 positive were tested for real time PCR.Results: Out of 1247 samples tested for rt-PCR 491 (39.37%) cases were identified as positive for H1N1. Maximum swine positivity was seen in the age group of 16-30 year i.e. 147 (29.94%). Overall swine positivity was significantly (<0.001) higher in females than male and extremely statistically significant (p<0.0001) higher in rural areas than urban. Cough was the most common clinical symptoms affecting 469(95.52%) patients followed by fever (92.26%) and breathlessness 402(81.87%).Conclusions: Our study will help epidemiologist and clinician to identify epidemiological factors and clinical picture of swine flu.
RESUMO
Background: Mortality profile is an analytical tool used to identify the various factors responsible for poor outcome of disease and it can also use to evaluate quality and efficiency of healthcare providers. The aim of this study is to summarise the clinical and epidemiological factors as well as to identify the risk factors associated with mortality among swine flu cases.Methods: It is a cross-sectional, descriptive, hospital-based study conducted on 62 deceased patients due to swine flu reported at Maharana Bhupal Government Hospital, Udaipur, Rajasthan during the outbreak of influenza A H1N1 in the year 2015. A standardized pre-structured questionnaire with consent was filled by help of bed head tickets and by interview of attendants of deceased patients.Results: Deaths were higher among age group of 31-45 years (35.48%). Case fatality rate for male patients (13.88%) was higher. Mortality was highest in females of rural background 27(43.55%). Majority of deceased patients (70.97%) had delay of 4-7 days in admission after onset of symptoms. Diabetes, cardiovascular diseases and pregnancy was the major risk factors for poor outcome.Conclusions: Delay in diagnosis and admission may be the reason for higher mortality rate. The most common co morbid illness was Diabetes mellitus, cardiovascular diseases (Ischemic heart disease, Rheumatic heart disease, Hypertension) and pregnancy.