The phagocytic cells of the immune system include macrophages, neutrophils, and dendritic cells. Phagocytosis of the hostsâ own cells is common as part of regular tissue development and maintenance.hese are immune cells that engulf, i.e. phagocytose, pathogens or particles. To engulf a particle or pathogen, a phagocyte extends portions of its plasma membrane, wrapping the membrane around the particle until it is enveloped (i.e. the particle is now inside the cell).
ACIP recommends that all children receive 2 doses of varicella vaccine routinely. The first dose should be given at age 12 through 15 months and the second dose at age 4 through 6 years.
Immunization against chickenpox is not recommended for infants younger than 12 months of age. You can be considered to be immune to chickenpox only if you have received the right number of varicella vaccine doses (1 dose if you are between 12 months and 12 years of age; or 2 doses if you are 13 years of age or older).