More flu vaccine is on the way to B.C. and more people will be eligible to get inoculated. (CBC)

B.C. will expand its eligibility list for the swine flu vaccine starting Monday to include healthy children, seniors with chronic conditions and health-care workers.

The province has received another 250,000 doses of vaccine, following a shortage felt across the country, and expects to receive another 258,000 next week.

Dr. Perry Kendall, B.C.'s provincial health officer, said the federal government decision to approve non-adjuvanted vaccine for healthy people between the ages of 10 and 64 also added to the supply.

And he said the Public Health Agency of Canada's new recommendations for children, that they need only one dose of vaccine, means the vaccine supply the province has will go further.

But he warned that there is not enough vaccine for all of those who will be eligible to get the shots immediately.

"We know the number of people in these new eligibility groups is significantly more than the amount of vaccine we will have available next week, so not everyone should expect to be immunized in the next week," Kendall told reporters.

"I anticipate that we could run out of vaccine by next week. But we would rather it run out and get into people's arms, than have it sitting in our fridges so that we could continue vaccinating people in dribs and drabs throughout the week.

"It doesn't make sense to hold back on the vaccine."

Pregnant women, children six months to five years, First Nations and residents of remote areas and front-line health care workers were given priority in the first weeks of the program.

Nearly one million doses injected in B.C.

As of next week, people 65 years and over who suffer from chronic health conditions will be eligible for vaccinations, along with healthy children aged five to 18, first responders and remaining health-care workers.

Kendall urged residents to call ahead and book appointments at vaccination clinics or their doctor's office.

"My message would be if you can't get the vaccine next week, then you'll get it the week after or the week after that. We will have vaccine for everybody in these groups but it's going to be, for the next little while, on a first-come, first-serve basis."

To date, more than 900,000 B.C. residents have been vaccinated against the pandemic virus, which Kendall has expressed hope has hit a plateau in the province.

Kendall said access to the vaccine, despite the expanded list, will vary from region to region. Demand has varied, he said, so it has been hard to predict.

And he noted that distribution has been somewhat delayed in the northern regions of the province, where distribution and access pose some challenges.