County Vaccination Coverage
The San Diego County Random Digit Dialing (RDD) Immunization Survey
Why are they calling me about an immunization survey?
The County of San Diego Health and Human Services Agency's Immunization Branch conducts Random Digit Dialing (RDD) telephone surveys year-round. More than 20 interviewers will make phone calls to randomly selected phone numbers during weekday evenings (5-9pm) and on Saturdays (10am -2pm) to assess immunization coverage rates for San Diego County residents.
This survey provides valuable data to determine what proportions of infants, children, adults and seniors living in San Diego County are fully immunized. The information collected helps us plan programs to do a better job of protecting all San Diegans from vaccine preventable diseases.
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The following graphs display some selected results of the survey and other state and national surveys.
Different telephone and school surveys have shown that increasing percentages of San Diego County preschool children are getting vaccinated. They have almost reached the Healthy People 2000 goal of 90% getting four doses of DTaP (diphtheria, tetanus, and pertussis), three doses of polio, and one dose of MMR (mumps, measles, and rubella) vaccines.
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Our telephone surveys found that we have met the Healthy People 2010 goal of 80% of San Diego County preschool children getting all the standard vaccines. These include: four doses of DTaP (diphtheria, tetanus, and pertussis), three doses of polio, one dose of MMR (mumps, measles, and rubella), three doses of hepatitis B, three doses of Hib (Haemophilus influenzae B), and one dose of varicella (chickenpox). However, the rate dropped in 2008-2009 because of the Hib vaccine shortage.
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The coverage rates for each vaccine were analyzed separately, some reached the Healthy People 2010 goal of 90% years ago, and have gone a little higher since then, such as for the third dose of DTP (labeled DTP3). The vaccines protecting against hepatitis B (HepB3) and chickenpox (Varivax), started with low coverage, but have reached the 2010 goal. In 1995 the number of children receiving the fourth dose of DTP (DTP4) was far below the 2010 goal. In 2008-2009 the number was higher, but did not quite reach the 2010 goal.
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The percentage of San Diego County residents age 65 and over getting the flu and pneumococcal vaccines has been similar each year and is similar to State and national rates.
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Everyone 6 months and older should get a flu vaccine each year starting with the 2010-2011 influenza season. People in some age ranges, health conditions, or occupations had higher rates of receiving the flu vaccine than other groups.
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The coverage levels of HPV (human papillomavirus), MCV4 (meningococcal meningitis) and Hepatitis A vaccines increased significantly over the previous assessment year.
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