Health News Digest: In a finding that suggests how global warming could impact infectious disease, scientists from Yale University, in collaboration with other institutions, have determined that climate impacts the severity of Lyme Disease by influencing the feeding patterns of deer ticks that carry and transmit it. The paper appears in the April issue of Applied and Environmental Microbiology. Deer ticks live for two years and have three stages of life – larval, nymphal and adult. They obtain one blood …