<span>It is done through the lytic cycle of the virus. This is the mechanism by which viruses infect a host, take over the function of the cells, and use them to replicate millions of new viruses in your body. See the related questions below about the lytic cycle.</span>
Answer:
An immune deficiency disease occurs when the immune system is not working properly. If you are born with a deficiency or if there is a genetic cause, it is called primary immunodeficiency disease. There are more than 100 primary immunodeficiency disorders.