They ingest bacteria, foreign cells, and damaged and dead cells. (The process of a cell ingesting a microorganism, another cell, or cell fragments is called phagocytosis, and cells that ingest are called phagocytes.). Macrophages secrete substances that attract other white blood cells to the site of the infection.ytokines are the messengers of the immune system. White blood cells and certain other cells of the immune system produce cytokines when an antigen is detected. There are many different cytokines, which affect different parts of the immune system: Some cytokines stimulate activity.
CPR for Infants (up to 12 months of age) CPR for infants is similar to CPR for adults and children. Checking for responsiveness: never shake an infant as this may cause brain damage. To check for responsiveness in an infant, tap the soles of the feet while calling to the infant in a loud voice.
First aid for choking and CPR: An illustrated guide for children 12 months and older. Find out the basics of first aid for choking and CPR and what to do, step by step, if a child over age 1 chokes on something or... Swallowed object or object stuck in windpipe.