11/25/2023 0 Comments Covid vaccine infographic cdc![]() ![]() This cap helps address potential over-estimates of vaccination coverage due to first, second, and booster doses that were not linked. These issues can cause CDC’s dose number estimates to differ from those reported by jurisdictions and federal entities.ĬDC has capped estimates of vaccination coverage shown on COVID Data Tracker at 95%. Also, CDC may lack information about a person’s residence. As people receiving doses are attributed to the jurisdiction in which they reside, the reporting method might change between doses if they move to a different jurisdiction. Thus, CDC’s data may over-estimate first doses and under-estimate subsequent doses.Īnother issue that poses challenges to estimating doses administered is that different jurisdictions and providers use different reporting practices. CDC may not be able to link multiple unique person identifiers for different jurisdictions or providers to a single person, and subsequent doses may appear to be a first dose when reported. That person could receive different unique person identifiers for different doses. There are challenges in linking records when someone receives vaccine doses in different jurisdictions or from different providers. However, CDC cannot use the unique person identifier to identify individual people by name. ![]() Each jurisdiction or provider uses a unique person identifier to link records within their own systems. To protect the privacy of vaccine recipients, CDC receives data without any personally identifiable information (deidentified data). CDC estimates are based on data that include a dose number (first, second, or booster). CDC estimates the number of people receiving at least one dose, the number of people who are fully vaccinated, and the number of people with booster doses. ![]()
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