*UPDATE* September 12th.
According to the FDA this outbreak seems to be over. There were 511 people infected with Cyclospora all linked to the consumption of salads from McDonald’s in 15 states. 24 people were hospitalized and no deaths were reported.

Link to FDA latest update here.
August 23rd.
The latest update from the FDA ongoing investigation revealed that 31 more ill people were added to this Cyclospora outbreak, and the total infected count now rises up to 507 people, all linked to the consumption of salads from McDonald’s in 15 states. 24 people have been hospitalized; no deaths have been reported.
August 16th
40 more ill people were added to this outbreak based on the latest update from the FDA ongoing investigation, making it a total of 476 people infected with Cyclospora linked to the consumption of salads from McDonald’s in 15 states.
August 10th
According to the FDA ongoing investigation, 436 people infected with Cyclospora related to the consumption of salads from McDonald’s restaurants.
August 02nd
395 people have been reported sick with a Cyclospora infection in 15 states. These cases have been linked to Fresh Express Salad Mix Served at McDonald’s. There have been 16 hospitalizations and no deaths.
According to the FDA, Cyclospora cayetanensis is a microscopic parasite of humans that when ingested, via contaminated food or water, can cause an intestinal illness called cyclosporiasis.
Consumers who have symptoms of cyclosporiasis should contact their health care provider to report their symptoms and receive care. Most common symptoms are: diarrhea, with frequent bowel movements, loss of appetite, weight loss, stomach cramps/pain, bloating, increased gas, nausea, and fatigue.
McDonald's has reported that it has replaced the supplier of salads in affected states (Illinois, Iowa, Indiana, Wisconsin, Michigan, Ohio, Minnesota, Nebraska, South Dakota, Montana, North Dakota, Kentucky, West Virginia, and Missouri) since July 13th.
You can check full details on the FDA website