In Human Immunodeficiency Virus (HIV) infected person, due to decrease in the number of helper T lymphocytes the person start suffering from infections that could have been otherwise overcome like bacterial, fungal ,parasitical or viral infections. Which of the following are included in the category of such infection causing organisms?

Mycobacterium, Toxoplasma.

Due to decrease in the number of helper T lymphocytes, the person starts suffering from infections that could have been otherwise overcome such as those due to bacteria especially Mycobacterium, viruses, fungi and even parasites like Toxoplasma. The patient becomes so immuno-deficient that he/she is unable to protect himself/herself against these infections.