H1N1 rate soars in Hamilton
October 24, 2009
By Naomi Powell
Spectator staff
http://www.thespec.com/News/BreakingNews/article/659767
H1N1 flu activity in Hamilton has already surpassed previous peak levels of seasonal flu and may still be on the rise, health officials say.
The number of positive H1N1 tests spiked to 21 per cent last week, up from 6 per cent the prior week, said Dr. Chris Mackie, Hamilton's associate medical officer of health.
"We're seeing more cases now than we did at any time in the last two years," Mackie said. "(H1N1) spreads a lot more easily and that's in part because we don't have a baseline level of immunity in the community."
Flu activity in Hamilton is "normally at zero" at this time of year, he said. A typical flu season runs from Christmas to March, with the number of positive tests usually at about 20 per cent.
But the novel H1N1 virus has broken with patterns, causing an initial wave of infections in the spring that tapered off through the summer.
Dr. Arlene King, Ontario's chief medical officer of health, confirmed yesterday that a second wave of H1N1 has arrived in the province.
"Influenza activity in the province is continuing to increase," she said. "We are seeing that more people are visiting their health-care providers with influenza-like illness and more people are being hospitalized with complications from the flu in Ontario."
Halton has experienced a similar spike in positive H1N1 tests, said Dr. Bob Nosal, the region's medical officer of health.
Health officials can't test everyone with flu-like symptoms, but they use a sampling of lab tests from patients in hospitals, long-term care homes and doctors to evaluate the spread of the virus.
Hamilton and Halton will make the first batch of the H1N1 vaccine available to people in high-risk groups next week. The clinics will be opened to the general public as more vaccine comes in.
"It would have been nice to have the vaccine a couple of weeks ago before the increase in activity ... ," Nosal said. "We should still be able to make an impact on transmission."