Early Indus Valley Civilization ... their Geograhpy, their customs and Indo-Aryan civilization with the earliest caste system.
Antibodies contribute to immunity in three main ways: they can prevent pathogens from entering or damaging cells by binding to them; they can stimulate removal of a pathogen by macrophages and other cells by coating the pathogen; and they can trigger direct pathogen destruction by stimulating other immune responses such as the complement pathway.
bind to the virus, but they do not inhibit infection. Such antibodies. can lead to enhancement of infectivity, because the antibody â via the. Fc portion â can bind to receptors on cells not normally infected by. the virus. The virus-antibody complex is taken up into cells, and. infection proceeds.I didn't answer the last part of your question â do viruses 'use' this. method of entering cells.c portion â can bind to receptors on cells not normally infected by. the virus. The virus-antibody complex is taken up into cells, and. infection proceeds. I didn't answer the last part of your question â do viruses 'use' this. method of entering cells.