A27.8

Clinical Causes: Bacterial infection from *Leptospira* species, transmitted via contact with contaminated water, soil, or animal urine. Exposure to environments contaminated with urine from infected animals such as rodents, livestock, or wild animals. Contact with infected animals through skin cuts, abrasions, or mucous membranes. Occupational exposure in professions like farming, sewage work, or garbage collection. Recreational activities in contaminated water bodies, such as swimming or rafting in lakes or rivers.

Key Symptoms: Fever and chills Muscle aches, particularly in the calves and lower back Headache Eye redness or conjunctivitis Skin rashes or ulcers in some cases Nausea and vomiting Abdominal pain jaundice or yellowing of the skin and eyes in more severe cases Possibly kidney or liver dysfunction Respiratory symptoms such as cough or shortness of breath in severe cases

Diagnosis Path: Diagnosis of other forms of leptospirosis often involves a combination of clinical evaluation, patient history, and laboratory testing. Blood tests such as serology can detect antibodies to *Leptospira*. Microscopic agglutination tests (MAT) are considered the gold standard. In some cases, urine or tissue samples might be tested using PCR to identify bacterial DNA. Because symptoms can resemble other illnesses, accurate diagnosis requires careful consideration by healthcare professionals.

Treatment Protocols: Treatment generally includes antibiotics such as doxycycline or penicillin, especially if administered early in the course of illness. Supportive care may be necessary for symptoms management, including hydration and rest. In severe cases involving organ dysfunction, hospitalization and more intensive interventions might be required. Preventative measures include avoiding exposure to contaminated water, practicing good hygiene, and controlling infection in animal populations. Vaccination may be available for animals in some regions, but human vaccines are limited in use worldwide.