The new influenza virus that is spreading all across the Europe and USA is in most cases an influenza A(H1N1)pdm09 strain of the virus. That causes a severe flu disease and it begins with a nasty cough. in the second say the affected people of the flu 2013 have fever with 38°- 40 ° grad Celsius , dizziness , chest pains with the cough , and weakness. Muscle Pain and a clogged and runny nose complete the symptoms.
