South Australia has been majorly attacked by the influenza outbreak this year, infecting almost double the number of people affected last year at the same point of time, says a recent report.

Clare Peddie and Jordanna Schriever have told that a mega flu season has arrived in the country, which has this week even killed a person in his 90s.

It has been found that the man was typically having the influenza illness. The illness largely attacks those with weak immune system or already diseased, the report finds.

Initially, the virus causes a person to suffer shakes, headache, fever, chills and dry cough, thereby leading to coughing, sneezing or sometimes tummy ache and diarrhea. Experts have even told that though, affected people often recover in a week in bed, life-threatening conditions are possible at times.

As per a report by the National Centre for Immunization Research and Surveillance (NCIRS), the flu virus tends to cause nearly 4000 people each year to be hospitalized. Also, nearly 85 people positive for the virus face deaths.

Thus, a vaccine available against the disease is being recommended to be received by everyone so as to prevent a further spread. "When there is a good match between the influenza strains in the vaccine and those causing current disease, the vaccine can prevent illness”, says NCIRS.