Toronto – Some immunization clinics in Ontario may have to close in the next few days because the province’s vaccine supply is expected to run out by the end of the week.Health Minister Deb Matthews can’t comment when each health unit is expected to run dry but said the situation means many in the high priority groups won’t get their flu shot for a while.

Ontario had enough vaccine to immunize 2.2-million residents, but the province estimates there are 3.4- million people in the high-risk group.

The province does have 86,000 doses of the unadjuvanted vaccine intended for pregnant women.The prime minister said 1.8-million doses of the regular H1N1 vaccine will be shipped to all the provinces next week, but health officials don’t know how much of that is coming to Ontario.

Ontario has had 37 swine-flu related deaths since April, including an infant and two seniors from the London area.More than 100 people have been hospitalized and 65 are in intensive care.