When this happens, the antibody signals to other immune cells to attack the organism. They also secrete substances that enable CD8 cells to reproduce. But while each lymphocyte can only recognise and attack cells infected by one specific virus, natural killer cells can attack a wider range. Eosinophils attack organisms that are too big to be eaten by a single phagocyte, like worms. The phagocytes are cells that attack and destroy foreign cells by engulfing them.
Neutrophils leave the blood to go to tissues where infection or inflammation is developing.
They mainly attack bacteria and fungi. ON NAM also publishes a free monthly newsletter, AIDS Treatment Update .