ANATOMY

Detailed explanation-1: -Antibody can neutralize virus by: 1) blocking virus-host cell interactions or 2) recognizing viral antigens on virus-infected cells which can lead to antibody-dependent cytotoxic cells (ADCC) or complement-mediated lysis.

Detailed explanation-2: -Neutralizing antibodies are responsible for blocking the entry of a pathogen into a cell so that it is firstly unable to infect healthy cells, and secondly, it is unable to replicate and cause severe infection.

Detailed explanation-3: -Antibodies serve as critical barriers to viral infection. Humoral immunity to a virus is achieved through the dual role of antibodies in communicating the presence of invading pathogens in infected cells to effector cells and interfering with processes essential to the viral lifecycle, chiefly entry into the host cell.

Detailed explanation-4: -Antibodies have several mechanisms to prevent infections. They can either neutralize viruses directly to prohibit their entry into the host cell, or they can crowd around a virus to increase its visibility to other immune cells.

Detailed explanation-5: -Antibodies are protective proteins produced by your immune system. They attach to antigens (foreign substances)-such as bacteria, fungi, viruses and toxins-and remove them from your body.