2021 has been a particularly warm and wet year, an ideal environment for leptospirosis bacteria to thrive. Also, this has been a great acorn year, so all the wildlife are about stocking up for winter and moving through backyards. This is the reason we see an increase in cases in the fall and early winter.
Tufts University Cummings School of Medicine is seeing a marked increase of severe leptospirosis cases this year. Many of the cases have multiple organ involvement requiring intensive care and treatment (e.g. dialysis).
Please contact your primary care veterinarian for further recommendations and assistance.