Swine flu, also known as the H1N1 virus, can spread from person to person through the air, primarily by coughing or sneezing. The virus can also spread by contact with objects and surfaces that have been contaminated with the virus, such as doorknobs, keyboards, and other items.
While it is possible for the virus to spread on its own, this is highly unlikely. The virus is only able to survive on its own in a highly controlled and contained environment, such as a laboratory. In the wild, the virus has to rely on other hosts to spread, which is why it is important to practice good hygiene, social distancing, and other infection control measures to prevent the spread of the virus.
In addition, the virus can survive on surfaces for up to two days, so it is important to frequently clean and disinfect surfaces that may have been contaminated with the virus. This can help to reduce the risk of the virus spreading to other people.
Overall, while it is possible for the swine flu to spread on its own, it is highly unlikely. Therefore, it is important to practice good hygiene, social distancing, and other infection control measures to help reduce the spread of the virus.