There is a rush on now to get a flu vaccine, but figures published last month for this season — the latest available from the Centers for Disease Control and Prevention — suggested that most people would again take their chances and go through the flu season without a vaccination.
The C.D.C. uses two sources to estimate what it calls "uptake": the National Immunization Survey, which is a telephone survey of households with children, and the National Internet Flu Survey, which collects vaccination-related data by age, race and ethnicity.
The number, about the same as it was at the same time in 2011, was not encouraging. As of mid-November, only 36.5 percent of people older than 6 months had been vaccinated.
Pregnant women, children, and anyone with compromised immune systems are especially urged to get vaccinated.
Image: Flu shots, via Shutterstock