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Childhood immunization during the COVID-19 pandemic in Texas
Tasmiah Nuzhath1, Kobi V Ajayi2, Qiping Fan3
1Texas A&M School of Public Health, College Station, TX, USA; Hagler Institute for Advanced Study at Texas A&M University, College Station, TX, USA.
Insights
Texas COVID-19 policies led to significant childhood immunization declines in 2020, particularly for infants and toddlers. Rural areas saw greater drops, raising concerns about vaccine-preventable disease outbreaks.
Area of Science:
- Public Health
- Epidemiology
- Immunization Practices
Background:
- COVID-19 pandemic prompted social distancing guidelines in Texas to prevent hospital surges.
- These public health measures had unintended consequences on routine childhood immunizations.
- Texas has also seen rising vaccine exemptions due to anti-vaccine sentiments.
Purpose of the Study:
- To analyze the impact of COVID-19 social distancing on childhood immunization rates in Texas.
- To identify age groups and geographic areas most affected by immunization declines.
- To assess the potential risks of vaccine-preventable disease outbreaks.
Main Methods:
- Analysis of state-wide immunization register data for Texas.
- Comparison of immunization rates between 2019 and 2020.
- Stratification of data by age group (infants, toddlers) and county type (urban vs. rural).
Main Results:
- A 47% relative decline in immunization rates for 5-month-olds and 58% for 16-month-olds in 2020 compared to 2019.
- A smaller decline (5%) for 24-month-olds; no decline for Hepatitis B vaccine at birth.
- Immunization declines were more pronounced in rural Texas counties than in urban areas.
Conclusions:
- COVID-19 social distancing measures significantly reduced childhood immunizations in Texas.
- The combination of reduced vaccination and increased exemptions heightens the risk of measles and other vaccine-preventable diseases.
- Urgent interventions are needed to restore childhood immunization coverage and prevent disease outbreaks.
Abstract:
In 2020, the state of Texas implemented coronavirus disease 2019 (COVID-19) social distancing guidelines in order to prevent surges at Texas hospital emergency rooms and in intensive care units. As noted in other states, an unintended consequence of these activities was significant declines in childhood immunizations. After analyzing state-wide immunization register data for Texas, we observed a 47% relative decline in immunization rates between 2019 and 2020 among 5-month-olds and a 58% decline among 16-month-olds. We observed a small decline (5%) among 24-month-olds, and no decline in vaccines received at birth (Hepatitis B). Declines were larger in rural counties compared to urban. These declines are superimposed on increases in state vaccine exemptions over the last five years due to an aggressive anti-vaccine movement in Texas. There are concerns that continued declines in childhood immunization coverage due to COVID-19 could lead to co-endemics of measles and other vaccine preventable diseases.
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