TORONTO -- Fewer milk donations from breastfeeding parents are causing a shortage in some parts of Canada, according to a milk bank that supplies several provinces across Canada.

Calgary-based says there has been a decline in donations during the pandemic and that they have seen a shortage.

“If we stay at the rate that we are now, in about a month we’re going to start running into issues,†co-founder and chief executive Jannette Festival told CTVNews.ca in a phone interview.

“It is a problem that we always have to monitor. It’s like blood donation, you can never say, ‘Oh, we have enough blood or we have too much blood.’ We don’t. It can turn so quickly.â€

It is a challenge facing a number of regions across the U.S. as well, according to the (HMBANA), which issued a statement last week urging those who were lactating to donate.

“Collectively, our member milk banks face new challenges as COVID-19 cases surge and winter storms threaten to further disrupt the supply chain,†the group said in the statement.

“Milk can take several days to be tested, processed, and made available for infants in need. Current supply is being used almost as quickly as it becomes available.â€

NorthernStar on Thursday, asking those with excess milk to sign up and become a donor. While the majority of its donations come from Alberta, there are donors from the East Coast as well, Festival said.

The Calgary organization is one of four milk banks in Canada and the only community-based one. It dispenses pasteurized milk from approved donors to hospitals and homes in the provinces of Alberta, Saskatchewan, Manitoba, and all of Atlantic Canada.

Three of the four Canadian banks, including NorthernStar, are members of the HMBANA.

Festival, a registered nurse, said 816 people signed up to donate in 2020, while 716 signed up in 2021. The group dispensed 175,000 ounces of milk, primarily to hospitals, in 2020, and dispensed 240,000 ounces in 2021.

“So a 37 per cent increase in milk going out with a 12 per cent decrease in donors. We always look to three months ahead, but we’re having fewer people sign up and more milk going out the door,†Festival said.

While it is unclear why there was an increase in 2021, Festival said it was possible the pandemic played a role.

“It could be due to a lot of things. It could be due to more sick babies, because of the pandemic. It could be because of more sick moms because of the pandemic. So if the moms get sick, oftentimes they will deliver prematurely and those babies are in need of milk,†Festival said.

In 2021, critical care medical professionals expressed alarm at the disproportionate number of COVID-19 patients who were also . At the time, the Ontario Society of Obstetricians and Gynaecologists pointed to situations where doctors had to perform a C-section on the ICU bed in order to properly treat the mother. And earlier this month, a group of Ontario hospitals that included Toronto's Hospital for Sick Children noted for COVID-19 due to a lack of maternal antibodies transferred from the unvaccinated parent.

Not all Canadian milk banks are experiencing this issue, however. In Ontario, the , which distributes pasteurized donor milk to 44 hospitals across the province and is a member of HMBANA, told CTVNews.ca that they were not experiencing any shortage.

“We continue to see a robust response from donors across the province and we are able to pasteurize an abundant supply of donor milk to meet the needs of vulnerable [neonatal intensive care] infants,†spokesperson Ashley Villarroel said in an email.

²Ï³Ü±ð²ú±ð³¦â€™s , which is operated by Héma-Québec and is not part of HMBANA, also told CTVNews.ca that they were not experiencing any shortage, and that the situation was fairly normal.

“We launched a small appeal at the beginning of January, but we were able to recruit enough mothers to make sure we were able to meet all the needs,†said spokesperson Laurent Paul Menard, adding that the group has not experienced any kind of abnormal changes in demand at hospitals.

was not immediately available to comment.