Public health officials are encouraging parents to make sure their children are current with their vaccinations. This is National Infant immunization week. Fond du Lac County Public Health nurse Joyce Mann says vaccines are among the most successful and cost-effective public health tools available for preventing disease and death. Mann says a statewide whooping cough outbreak is a perfect case in point why its important to get immunized. Mann says some vaccine-preventable diseases like mumps and measles have recently been reported in Wisconsin. She says these diseases Can be especially serious for infants and young children. 2014 marks the 20th anniversary of National Infant Immunization week.