• Swine flu presents with fever of more than 1000 F with cough or sore throat in the absence of any other main cause. • The diagnosis is confirmed with a lab test using rRT/PCR technique. • Mild or uncomplicated flu is characterized by fever, cough, sore throat, nasal discharge, muscle pain, headache, chills, malaise and sometimes diarrhea and vomiting. In mild cases, there is no shortness of breath. • Progressive swine flu is characterized by the above symptoms along with chest pain, increased respiratory rate, decreased oxygen in the blood, labored breathing in children, low blood pressure, confusion, altered mental status, severe dehydration and exacerbation of underlying asthma, renal failure, diabetes, heart failure, angina or COPD. • Severe or complicated swine flu is characterized by respiratory failure, requirement of oxygen or ventilator, abnormal chest x-ray, inflammation of the brain, lowering of blood pressure to less than 60 and involvement of the heart muscle. These patients will have persistent high fever and other symptoms lasting more than three days. • Most patients will remain asthmatic with illness lasting 3-7 days. • The characteristic features are presence of chills, muscle pain and joint pain. • In the pregnant women, flu can cause more serious complications including death of fetus. • Mild cases do not require admission but progressive cases need to be admitted. • Underlying, organ disease and requirement of mechanical ventilation is the indication for admission. • Oseltamivir phosphate is the treatment of choice but it should be taken under medical supervision. It has to be given in the first 48 hours. It is given in severely low patients, pregnant women, underlying organ disease or age less than 5 years. • Flu vaccine can be given to all. It should be given to all high-risk patients. • The virus spreads through droplet infection and spreads with a person coughs, sneezes, sings or speaks. The virus can cover only a distance of 3 to 6 feet. • Stay 3 feet away from the person who is coughing. • The standard prevention is respiratory hygiene, cough etiquette and hand hygiene. • Hand washing should be performed before and after every patient contact or infectious material and before putting and after removing gloves. • Hand hygiene can be performed by washing with soap and water or with alcohol based hand drops. • If hands are visibly soiled, they should be washed with soap and water. • Patients should be placed in a private room or area. The health care staff should wear a face mask while entering the patient’s room. When leaving the room, the health care workers should remove the face mask, dispose it off and then perform hand hygiene. • Patients should wear a surgical mask and should be aware of respiratory hygiene, cough etiquette and hand hygiene. • Droplet precaution should be taken for seven days after illness onset or 24 hours after resolutions of fever and respiratory syndrome. • One should not cough in the hands, handkerchief but instead cough either in the tissue paper and dispose it off or in the side of the arm. • Swine flu causes fewer deaths than normal seasonal flu. • Hong Kong Study of H1N1 (Between April and December 2009]: Overall attack rate was 10.7 percent, case-hospitalization rate was 0.47 to 0.87 % among people aged 5 to 59 years, case-ICU rate was 7.9 cases per 100,000 infections in children aged 5 to 14 years, case-ICU rate was 75 cases per 100,000 infections in adults aged 50 and 59 years, case-fatality rate was 0.4 cases per 100,000 in children aged 5 to 14 years and case-fatality rate 26.5 cases per 100,000 in adults aged 50 to 59 years. • Case fatality is 0.4 – 26.5 cases per 100,000. That means 10 deaths would occur if one lac people gets fly. For getting 95 deaths we need almost one crore people getting infected with flu. This again means 10% of the society suffering from flu or two patients per family. Either the figure 95 is wrong or the figure number of positives deaths is wrong. • Two third of deaths occur in people with underlying chronic illness. • In seasonal flu more deaths are in people above 65 years of age and in H1N1 flu more deaths are in 50-64 years old age group.