Lisa Ball, 53, from Keighley, West Yorks, was riding as a passenger on a rented scooter when a pick-up truck pulled out from a restaurant car park on the island's tourist trail near Montego Bay.
Dylan Veselic, a sophomore at Bay High School near Cleveland, was reportedly rushed to the hospital in an ambulance before being flown by helicopter to another center.
Emergency services were called to Colwick Country Park at 5.20pm yesterday after the 16-year-old boy got into difficulty while in the water, according to Nottinghamshire Police.
Henry Spletter, who was 22-months-old, is understood to have choked on something while at Busy Bees at Redlynch in Cairns, Far North Queensland, last Thursday.