The swine flu differs little in the people it infects. The most notable symptoms are always those of the common cold or flu and can easily become worse over time. This is due to the age range of which the adult who are getting infected are. Anyone in the young adult to middle age range (15-50 years) has a vigorous and healthy immune system. This immune system is controlled by cytokines, a special molecule that is produced by different cells which trigger the immune responses of the body. They tell the body to produce certain types of proteins or cease the production of them as well and this could lead to a more damaging scenario to the body.

In adults, this immune response can be too much for the body to handle and could lead to fatal conditions. The reason why it is not so strong in younger children as well as the elderly is because their immune systems are different. Young children are still developing their immune systems and this makes them less vulnerable to the overreaction of the body’s immune-response. In the elderly, their immune system is not very strong and this makes the immune response to the swine flu much less damaging to the body.

The best way to deal with the infection is to get a vaccine whenever possible to prevent the disease from catching the adult body by surprise. Since the swine flu can easily shift into another variant, it is not truly known whether or not it will completely remove itself from the infectious cycle which could affect the human race. The most recent swine flu outbreak is only one of many similar flu variations which have occurred in history. Taking the appropriate precautions to prevent infection is recommended.