Cases of pertussis (whooping cough) have increased dramatically over the past five years, putting infants at risk of serious illness or death. (sciencedaily.com)
→ An animal has a medical condition that is beyond our resources to treat, or that will likely result in a poor quality of life for the animal or that, because of its very contagious nature, would place the rest of the shelter population at risk of serious illness. (southjerseyregionalanimalshelter.org)
Taking care of one's self, decreases one's risk of serious illness. (religion.blogs.cnn.com)