People wait for the H1N1 vaccine outside the Avenida Village mall in Calgary on Tuesday. (CBC)

Calgary's remaining mass swine flu vaccination clinics are closing on Wednesday, but the shot will still be available at some doctors' offices and pharmacies.

The EMS Whitehorn, Avenida Village and Brentwood Village Mall clinics will be open from noon to 7 p.m. Tuesday and Wednesday before closing for the month.

Alberta Health Services hasn't decided whether to reopen those in January, although some Edmonton clinics are already scheduled to remain open as late as Jan. 23.

Some doctors' offices and pharmacies in Calgary are also offering the shot.

The province's goal is to inoculate two million Albertans and so far 1.2 million have been inoculated, said Dr. Gerry Predy, Alberta's senior medical officer of health.

"I think we'll attempt to have some evening and perhaps even weekend hours [in January], but the sites will probably not be as large as the mass clinics were. We're still looking to have some opportunity for people to just drop in, but again the staff are still working out the details," he said.

Demand going back up

Demand seems to have gone up for the shots recently. On Tuesday at noon the wait at the Brentwood Village Mall clinic was at least an hour. Those in line told CBC News they had procrastinated in getting the shot and now hoped to get it before the clinics close.

All three clinics were closed on Sunday, but people showed up anyway, unaware of the closure and hoping to get vaccinated.

'We're heading into the holiday season and people are doing a lot of travelling, doing a lot of socializing and those conditions are just ripe for the virus to spread again.'—Dr. Gerry Predy

The Cambrian Drug Mart in northwest Calgary began giving the vaccine shot on Monday.

"It was quite chaotic. We seemed to do all of our vaccines in about a two- to three-hour window and there were people everywhere in the store, and staff were very busy, because we had extra staff in just to accommodate the demand," said pharmacist Rob Heaton on Tuesday.

"We are already taking bookings for those who want to take it today, tomorrow and even into January."

Even though the infection has peaked, Predy said the shot is still the best defence against getting sick.

"We're heading into the holiday season and people are doing a lot of travelling, doing a lot of socializing and those conditions are just ripe for the virus to spread again. Nobody can predict when it is going to come back, but the likelihood is we will see it again after Christmas," he said.