While there are vaccinations for many communicable diseases, there are many others for which immunizations have not yet been developed. Some of these include conditions like conjunctivitis and body lice, which are transmitted through direct and indirect contact with someone who is infected.
Currently, there are also no vaccinations for illnesses resulting from E. coli, some parasites, and salmonella, which are transmitted through contaminated water, feces and food.
Following standard and universal precautions for the childcare setting, proper hand washing protocol, preparing and handling food in a sanitary manner, using latex or vinyl gloves when there is contact with blood, and cleaning and disinfecting objects and surfaces regularly can help to prevent the spread of communicable diseases.
Children who have HIV or AIDS likely contracted the disease from their infected mother during pregnancy, childbirth or breast-feeding. According to the Center for Disease Control, children with HIV/AIDS cannot spread the disease to other children through hugging, holding hands or casual contact.