Hepatitis B virus is responsible for causing the infectious disease "Hepatitis B" . It negatively affects the liver and may cause acute / chronic infection.
Host cell is the living cell that allows the Hepatitis B virus to multiply and reproduce in it. The DNA of virus may integrate into the DNA of host cell.
The viral envelope proteins interact with CD4 and a co-receptor on the cell membrane.
The host of HIV/AIDS is through sexual intercourse
It out can infect a number of cells, most of which are in the immune system. Examples are: helper T cells (CD4+ T), macrophages, and dendritic cells.
Helper T Lyphocyte and Phagocytes.
helper T cells
CD4+ cells, or T lymphocytes
immune system cells. CD4 T helper cells.
Cd-4 cell
HIV binds with the CD4 protein on the surface of the T4 lymphocyte. The HIV fuses with the T4 lymphocyte. Viral RNA (ribonucleic acid) and reverse transcriptase enter the target cell. Reverse transcriptase produces viral DNA (deoxyribonucleic acid) from the viral RNA. Viral DNA enters the target cell's nucleus and splices into the target cell's DNA. The target cell uses the information on the viral DNA and produces the pieces needed for building copies of HIV. The pieces are assembled into new copies of HIV. This process uses an enzyme called protease. Copies of HIV are released from the target cell in a process called budding.
the immune system.
the forms in which hiv hides in the host cell is retrovirus
No, HIV cannot attach itself to a muscle or a skin cell because the antigens on the HIV membrane are not complementary to their binding sites. However, HIV can attach itself to a helper T cell because the antigens on the HIV membrane are complementary to the binding sites of the helper T cells.
NO
Viruses.
true. they target helper t cells
HIV infects cells in the central nervous system and the immune system. HIV's main target cell is the T helper lymphocyte. These cells play a crucial role in the immune system, by coordinating the actions of other immune system cells. A large reduction in the number of T helper cells seriously weakens the immune system3
T helper cells, also called CD4+ T cells (or just CD4 cells) are part of the immune system, but they are also the main target cells that HIV infects and uses to reproduce.
helper T cells
The surface of the HIV virion contains a glycoprotein called gp120 which allows it to attach to human immune system cells. The T cells of the immune systemhave a receptor on their cell membrane called CD45. A strong interaction between CD45 and gp120 has been shown.