Write the cause,symptoms,and prevention of $AIDS$.

(N/A) Cause: $AIDS$ is caused by the $HIV$ ($Human$ $Immunodeficiency$ $Virus$).
Symptoms: The symptoms include significant weight loss,night sweats,loss of appetite,persistent fever,and overall weakness of the body due to a compromised immune system.
Prevention: $AIDS$ can be prevented by avoiding sexual contact with unknown persons,using only sterilized needles and blades,and ensuring that blood used for transfusion is screened and free from $HIV$.