Nichol said hantavirus pulmonary syndrome and lymphocytic choriomeningitis virus (LCMV), two viruses carried by mice, are associated with “particularly severe diseases.” LCMV poses a particular risk to pregnant women because it can cause congenital defects in the fetus, he said.
“You don’t have to have direct contact with the mice to get an infection,” he said. “You can get it just from the droppings or the contaminated dust.”
Safely dispose of any mice caught, and disinfect the areas where they’ve been. A bleach solution or Lysol-like spray works well, Nichol said.
“We all know whether we have in the past had rodent problems,” he said. “If you’ve had that problem, get out ahead of it.”