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Leptospirosis Alert: Berkeley Residents Warned to Stay Away

1/16/2026

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Summary

Story summary

Health officials in Berkeley, California warn that leptospirosis, a bacterial infection transmitted mainly by rats and their urine, poses serious health risks after being detected in a homeless encampment.
Residents should avoid the designated 'RED ZONE' near Harrison Street and stay at least one-third of a mile away.
Precautions include avoiding standing water, wearing protective clothing, and monitoring for symptoms.
Anyone exposed or showing illness should seek immediate medical attention.

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Story summary

Health officials in Berkeley, California warn that leptospirosis, a bacterial infection transmitted mainly by rats and their urine, poses serious health risks after being detected in a homeless encampment.
Residents should avoid the designated 'RED ZONE' near Harrison Street and stay at least one-third of a mile away.
Precautions include avoiding standing water, wearing protective clothing, and monitoring for symptoms.
Anyone exposed or showing illness should seek immediate medical attention.