Health officials in both Stanislaus and San Joaquin counties are working together to figure out how a Stockton man and two family members became sick with Campylobacter bacteria around the time he went swimming in the Woodward Reservoir.
Luis Lopez told FOX40 on Monday that he started to feel ill less than a day after swimming in the lake and had to stay in the hospital for nearly a week.
According to Stanislaus County officials, hospital testing can reveal what type of bacteria caused an illness but not its source.
Campylobacter can be found in non-chlorinated water, like a lake, but is more commonly found in raw meat.
Experts are testing the water in the Woodward Reservoir to see if there is indeed Campylobacter in it.