TH cells
HIV (Human Immunodeficiency Virus) primarily targets and infects T-helper cells (also known as CD4+ T cells), which are a type of immune cell. The virus replicates within these cells and produces progeny viruses, eventually leading to the destruction of the immune system over time.
So, the correct option is (D): TH cells
List I | List II | ||
---|---|---|---|
A | Mesozoic Era | I | Lower invertebrates |
B | Proterozoic Era | II | Fish & Amphibia |
C | Cenozoic Era | III | Birds & Reptiles |
D | Paleozoic Era | IV | Mammals |