This week is National Influenza Vaccination Week, just in time for the third projected wave of the H1N1 flu pandemic.
Dr. Vicki Whitacre of the Zanesville Muskingum County Health Department says flu pandemics tend to have several waves.
"Usually when you have pandemics, which H1N1 is considered to be, you will have three waves," she said. "We've had two and we're expecting the third in a month or two. "The first one started in the late spring and the other one was this past fall. We're thinking it should start about the same time as the seasonal flu, which will be late January or early February."
Dr. Whitacre said those in the at risk category including pregnant women, children and those with asthma are encouraged to get the vaccination which is still available at both the health department and Rambo Memorial Health Center.
"It only takes you about 10 days to two weeks to get your immunity, we're not really expecting it to start for another two to four weeks, or even later," said Whitacre. "It is not to late to get the shot and as soon as seasonal flu is available, please get those too. It is not too late to get the immunizations."
About four million doses of the vaccination were distributed in Ohio last year and the data showed fewer than one million were administered through December.