Causes of H1N1 flu

Answer 1

H1N1 flu causes depend on perspective. Directly, it is the H1N1 Swine Flu virus that causes swine flu. The vast genetic variability of influenza viruses has made it difficult to give a name to this virus that is both scientifically correct and useful in general parlance. Both "h1n1" and "swine" describe a set of viruses which includes subsets. Neither is specific enough; neither is "h1n1 swine." In July of 2009, the World Health Organization (WHO) announced that it would refer to the virus responsible for the current outbreak as "h1n1/09," a term that is scientifically and genetically valid, and uses the year of the outbreak to further specify.

Influenza viruses invade human cells, hijack their "machinery," and use the cells to reproduce. Infected cells produce large amounts of specific chemicals that stimulate body's immune response, which in turn causes many of the symptoms common to swine and other types of influenza.

Viruses are incredibly simple biological entities, so simple in fact that there is some debate as to whether or not they can be called "alive." Regardless, this simplicity allows for infinite genetic variation through a process called "reassortment." Through the shuffling of genetic materials, influenza viruses of all kinds (influenza and otherwise) rearrange their makeup as well as their characteristics: what type of species they infect, how they are transmitted, they area of the body (type of cell) they infect, etc. This endless variability forever keeps the body's immune system playing "catch up." Even though exposure to a type of influenza virus produces some degree of immunity, if the virus mutates slightly that immunity may be rendered completely ineffective.

Sometimes two different viruses may "reassort," taking on each other's characteristics. For example, a virus specific to swine may combine with one that can infect humans, creating a new virus that can spread from swine to humans. (The capability to move then from human to human may take an additional mutation.) This is a simplified version of the process that likely produced the h1n1/09 virus.

Additional causes of the h1n1/09 outbreak include the prevalence of global travel and the scale of the industrial meat industry. The state of travel in the modern world means that an infectious disease can easily traverse the world many times over, making containment extremely difficult. It is believed that the h1n1/09 outbreak involved both sides of the world: the virus reassorted and "jumped" from swine to human in Asia before traveling, via human host, to Mexico, where it began to spread and the pandemic began.

Industrial meat production includes keeping extremely large numbers of animals in very tight quarters, providing perfect conditions for the spread and reassortment (mutation) of viruses at an exponentially faster rate than would be found in the wild.

Answer 2

The agent that causes H1N1 diseases is your mother's face which is really horrible like pigshit. The pigshit looks of your mother made the animals waste on the same place and made the animals sick and stuff.Their sickness is get by ugly humans like you and the smell like pigshit like you really are and then you die the end RIP

--------- By: ImDa Baws