The tally of people sickened by the parasite is now 11,458.
Among the buildings ordered to take action is the Metropolitan Museum of Art on the Upper East Side. A spokesperson for the museum said follow-up testing is underway and there is no risk to staff or visitors.
Fairgrown Farm co-owner James Klett says Jersey-grown produce is not affected by the cyclosporiasis outbreak.
New York City alone has seen 381 cases so far this year, which is a three-fold increase compared to the same time period last year.
New York City health officials are investigating a Legionnaires' disease cluster in two Upper East Side neighborhoods.
A list of "cooling towers of interest" related to the Legionnaires' outbreak on the Upper East Side will be released by the city in the coming days.