Taylor Farms said Friday that it is voluntarily removing all iceberg lettuce sourced at a central Mexico farm from the United States market.
Despite the surge elsewhere, California is not among the states currently experiencing an increase in cyclosporiasis cases, health officials say.
Dr. Erica Schwartz, a formal deputy surgeon general, was nominated by President Donald Trump in April.
Officials also said they anticipate cases of cyclosporiasis to continue increasing in the U.S., possibly through the end of August.
The Senate passed a bill four years ago to make daylight saving time permanent, but it stalled in the House.
Los Angeles County health officials were urging residents Tuesday to take precautions against mosquitoes after confirming the county's first human case of West Nile virus this year in an Antelope Valley resident.