Influenza is a viral development. There are three main types of influenza known as A, B and C. Swine flu paved the way for H1N1, a subtype of the influenza A virus, which was also proven to pass from humans to pigs for the first time, and is a climate disease with a high level of knowledge.⠀ ⠀ Mainstream symptoms may include sore throat, recording, system and body aches, weakness, headache, fever, chills, some severe diarrhea and heartbreak or vomiting⠀ ⠀ Rates of seasonal flu are more severe due to the fact that a large part of the society has not encountered this virus before and this family has not gained the flexibility against it.