National Immunization Survey Flu (NIS-Flu)

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National Immunization Survey-Flu (NIS-Flu) 2020-21, Texas

Immunization Coverage Among Texas Adults and Children 6 Months and Older

Source: CDC NIS Flu Report

About the National Immunization Survey-Flu (NIS-Flu)

The NIS-Flu combines flu vaccination responses collected from annual surveys conducted by the Centers for Disease Control and Prevention (CDC) including the NIS-Child, NIS-Teen, NIS-Childhood Influenza Module (NIS-CIM), and the Behavioral Risk Factor Surveillance System (BRFSS) for all age groups (Figure 1). NIS-Flu data are used to estimate annual flu vaccination coverage among children 6 months through 17 years and adults 18 years and older at the national level, state level, selected local levels, and in some U.S. territories. The NIS-Flu estimates are based on parent or guardian reported data (for children) and self-reported data (for adults). The NIS-Flu also provides fewer local area estimates than the NIS-Child and NIS-Teen. The 2020-2021 survey assessed the self-reported immunization status of approximately 437,494 children and adults in the United States. This sample was comprised of 291,711 adults and 145,783 children. The Texas sample included 16,643 respondents. 

NIS-Flu Vaccination Coverage Levels


Vaccination Coverage Levels


See below for accessible data chart:

Influenza Immunization Coverage Estimates by Age Group, Children and Adults, 2020-21 Season            
Age GroupUSTexas Bexar County City of Houston 
6 mos-4 years68%64.9%68.7%65.7%
5-12 years59%59.5%62.4%
13-17 years50.9% 48.2% 50.5% 46.6% 
18-64 years43% 36.6% 46,2% 31.7% 
65+ years75.2% 72.3% 76.6% 


See below for accessible data chart:

Influenza Vaccination Coverage Estimates for Texas, 2016-17 Season to 2020-21 Season by Pediatric Age Group            
Age Group2016-172017-18 2018-19 2019-20 2020-21 
6 mos-4years71.9%65.4%72.6%77.2%64.9% 
5-12 years59.8%60.9%63.9%
13-17 years50.3% 48.1% 51.9% 53% 48.2% 

See below for accessible data chart: 

Influenza Vaccination Coverage Estimates for Texas, 2016-17 Season to 2020-21 Season by Adult Age Group              
Age Group2016-172017-18 2018-19 2019-20 2020-21 
18-49 years29.2% 23.5% 33.5% 33.7% 31.7% 
50-64 years41.9% 32% 47.3% 45.2% 48.1% 
65+ years62.1% 52.6% 67.5% 64.7% 72.3% 

Archived Survey Results

Last updated December 9, 2021