It’s the gift that keeps on giving.

Just days after a fast-moving gastrointestinal outbreak that swept through one of Pennsylvania’s best-known sleepaway camps, camp directors informed parents that one camper tested positive for E. coli — while insisting the infection was unrelated to the camp’s food or water, according to emails reviewed by The Post.

Tyler Hill director Andy Siegel told parents that a child who became ill roughly a week earlier had tested positive for a strain of E. coli.

According to the child’s physician, the particular strain identified is transmitted through person-to-person contact and is “not believed to be connected to food or camp food-service operations.”

The camp said it is aware of only one confirmed E. coli case and noted that the child had largely recovered before the test results became available. Parents were also told antibiotics were not recommended in the case.

A camp spokesman confirmed to The Post that the case was reported to the Pennsylvania Department of Health.

The disclosure comes after The Post reported this week that parents said dozens of campers had fallen ill with gastrointestinal distress, overflowing the infirmaries and filling them beyond capacity.

Some children were sent home as the illness spread through the Wayne County sleepaway camp—something that parents allege to The Post happens repeatedly.

“Every year Tyler Hill has some outbreak of different illnesses; they wait days to inform parents. The director’s solution is to send the sick home,” one parent, who asked not to be identified, told The Post.

Camp officials rejected that claim, saying the last comparable stomach virus outbreak occurred in 2012.

“Like in that year, this bug has hit quite a few camps and was reported to be going around in the NY Region for more than two months prior to the start of camp,” the camp spokesperson said.

One anonymous parent alleged that roughly a quarter of campers were sent home because there was no longer room to house sick children.

The camp disputed that account, saying fewer than 10% of campers left during the outbreak. Officials said many of those children were not sick but were picked up by parents who were anxious about the virus spreading.

Alums also took to social media, claiming some campers, whose parents were enjoying their last few childless weeks on trips in Europe, had no place to go and were taking shelter at friends’ houses or alums’ rooms.

“The campers are leaving camp, and they are not going home because their parents are not home. Their parents are in the South of France,” the alum said in a video on Instagram.

She described the campers’ exodus as a “traveling teen tour” or “youth hostel” presented by said camp.

Camp officials also called it “categorically untrue” that any camper left without a place to stay after leaving camp.