February flu spike in Waterloo region
Flu shot bullseye: inoculation matched the virus strains circulating in Waterloo Region
That was largely due to the fact that the flu shot closely matches the virus strains that are circulating, Aoki said.
The H1N1 strain of the flu, which caused a pandemic in 2009, has been making the rounds this winter, but people are better prepared for it now, he said.
"The vaccine, since 2009, has always had H1N1 in it. So this year, because that same strain is in the vaccine this year, we're seeing a very good match to the vaccine," Aoki said.
Most cases of influenza are H1N1
A report to Wellington-Dufferin-Guelph Public Health said as of Feb. 20, they have had only 48 confirmed cases of the flu. The majority of lab-confirmed influenza cases there have been identified as the H1N1 strain.
H1N1 can be particularly hard on elderly patients, but so far this year, there haven't been any outbreaks at institutions, the report said.
Aoki said the same is true at nursing homes and hospitals in Waterloo region.
Peak may have passed
Aoki said with the spike in Feburary, it is unclear if the region has passed peak flu season or if there is more to come.