The Infectious risk has shown a gradual decrease over the past 12 weeks, bringing current levels down from earlier weeks..
Allergy risk activity has been decreasing over the past 12 weeks in San Bernardino, California.
Pollution risk activity has been climbing over the past 12 weeks in San Bernardino, California.
Weather risk activity has been climbing over the past 12 weeks in San Bernardino, California.
Last updated: July 13, 2026
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