ELIZABETHTOWN Saturday, April 19 marks the beginning of National Infant Immunization Week, an annual observation to highlight the importance of protecting infants, a group vulnerable to disease, from vaccine-preventable diseases. Because of the success of vaccines in preventing disease parents are often unaware that their children are at risk for so many serious and life-threatening vaccine-preventable diseases. Vaccines are successful, safe, and cost-effective tools for preventing disease. They not only help protect individuals, but also help protect entire communities by preventing and reducing the spread of infectious disease. Free immunization clinics for children from infancy up to age 19 will be held at Essex County Public Health. The dates are Monday, April 21, 9:30 a.m. to 12:30 p.m.; Tuesday, April 22, 10 a.m. to 2 p.m.; and Thursday, April 24, 12:30-3:30 p.m. For further information and to schedule an appointment for immunization, call 873-3500.