Immunizations and Native Hawaiians/Pacific Islanders

Immunization is the process of developing immunity, most often through vaccines. Vaccines train the immune system to recognize and fight infections in a safe way. They greatly reduce the chance of getting sick, needing hospital care, or dying from infectious diseases. When many people are vaccinated, it also helps protect the community by slowing the spread of disease, including protecting people who cannot get vaccinated. Vaccines may cause mild side effects like tiredness or soreness for a short time, but the protection they provide can last for many years or even a lifetime.

Infections can be unpredictable and serious, even when symptoms are mild or not noticeable. Vaccines help the body build protection before exposure, which is important because it may be too late to prevent illness after infection. Some vaccines need more than one dose to give full protection, and boosters may be needed over time.

See “Additional Resources” to learn more about the benefits and possible risks of vaccines.

Additional Resources

MedlinePlus

U.S. Centers for Disease Control and Prevention (CDC)

Further Reading

Diphtheria-Tetanus (DTaP)

Children

Children born in 2020 who received at least 4 doses of the diphtheria-tetanus-acellular pertussis (DTaP) vaccine by age 24 months, percentage
NHPI*Total PopulationRatio (NHPI* / Total)
71.080.70.88
Source: U.S. Centers for Disease Control and Prevention. (2023). National Immunization Survey-Child, United States, 2017-2022 (Supplementary Table 1). U.S. Department of Health and Human Services.

Haemophilus Influenzae Type B (Hib)

Children

Children born in 2020 who received the full series (either a 3-dose series or a 4-dose series depending upon the product type) of the Haemophilus influenzae type b (Hib) vaccine by age 24 months, percentage
NHPI*Total PopulationRatio (NHPI* / Total)
75.578.20.97
Source: U.S. Centers for Disease Control and Prevention. (2023). National Immunization Survey-Child, United States, 2017-2022 (Supplementary Table 1). U.S. Department of Health and Human Services.

Hepatitis A

Children

Children born in 2020 who received at least two doses of the hepatitis A vaccine by age 24 months, percentage
NHPI*Total PopulationRatio (NHPI* / Total)
22.047.30.47
Source: U.S. Centers for Disease Control and Prevention. (2023). National Immunization Survey-Child, United States, 2017-2022 (Supplementary Table 1). U.S. Department of Health and Human Services.

Hepatitis B

Children

Children born in 2020 who received at least 3 doses of the hepatitis B (Hep B) vaccine by age 24 months, percentage
NHPI*Total PopulationRatio (NHPI* / Total)
79.291.50.87
Source: U.S. Centers for Disease Control and Prevention. (2023). National Immunization Survey-Child, United States, 2017-2022 (Supplementary Table 1). U.S. Department of Health and Human Services.

Human Papillomavirus (HPV)

Adolescents

Adolescents who received recommended doses of the human papillomavirus (HPV) vaccine, percentage, 2023
NHPI*Total PopulationRatio (NHPI* / Total)
54.757.30.95
Source: U.S. Centers for Disease Control and Prevention, National Center for Health Statistics. (2024). National Health Interview Survey – Teen, Healthy People 2030: Adolescents receiving recommended doses of the HPV vaccine, 2023. U.S. Department of Health & Human Services.

Influenza

Adults

Adults ages 18 and over who received the flu vaccine in the past 12 months, percentage, 2024
NHPITotal PopulationRatio (NHPI / Total)
30.643.00.71
Source: U.S. Centers for Disease Control and Prevention, National Center for Health Statistics. (2025). Interactive summary health statistics for adults: Percentage of receipt of influenza vaccine in the past 12 months for adults aged 18 and over, United States, 2024. U.S. Department of Health & Human Services.

Measles, Mumps, and Rubella (MMR)

Children

Children born in 2020 who received at least 1 dose of the measles-mumps-rubella (MMR) vaccine by age 24 months, percentage
NHPI*Total PopulationRatio (NHPI* / Total)
80.991.40.89
Source: U.S. Centers for Disease Control and Prevention. (2023). National Immunization Survey-Child, United States, 2017-2022 (Supplementary Table 1). U.S. Department of Health and Human Services.

Pneumonia

Adults

Adults ages 18 and over who ever received the pneumococcal (pneumonia) vaccine, percentage, 2024
NHPITotal PopulationRatio (NHPI / Total)
16.625.10.66
Source: U.S. Centers for Disease Control and Prevention, National Center for Health Statistics. (2025). Interactive summary health statistics for adults: Percentage of ever receiving a pneumonia (pneumococcal) vaccine for adults aged 18 and over, United States, 2024. U.S. Department of Health & Human Services.

Polio

Children

Children born in 2020 who received at least 3 doses of the polio vaccine by age 24 months, percentage
NHPI*Total PopulationRatio (NHPI* / Total)
84.392.90.91
Source: U.S. Centers for Disease Control and Prevention. (2023). National Immunization Survey-Child, United States, 2017-2022 (Supplementary Table 1). U.S. Department of Health and Human Services.

Rotavirus

Children

Children born in 2020 who received at least 2 or at least 3 doses of the rotavirus vaccine (depending upon the product type) by age 24 months, percentage
NHPI*Total PopulationRatio (NHPI* / Total)
64.076.40.84
Source: U.S. Centers for Disease Control and Prevention. (2023). National Immunization Survey-Child, United States, 2017-2022 (Supplementary Table 1). U.S. Department of Health and Human Services.

Varicella (Chicken Pox)

Children

Children born in 2020 who received at least 1 dose of the varicella (chicken pox) vaccine by age 24 months, percentage
NHPI*Total PopulationRatio (NHPI* / Total)
86.391.20.95
Source: U.S. Centers for Disease Control and Prevention. (2023). National Immunization Survey-Child, United States, 2017-2022 (Supplementary Table 1). U.S. Department of Health and Human Services.

No Vaccinations

Children

Children born in 2020 who received no vaccinations by age 24 months, percentage
NHPI*Total PopulationRatio (NHPI* / Total)
3.11.03.10
Source: U.S. Centers for Disease Control and Prevention. (2023). National Immunization Survey-Child, United States, 2017-2022 (Supplementary Table 1). U.S. Department of Health and Human Services.

Fully Immunized

Children

Children born in 2020 who were fully immunized (combined 7-vaccine series) by age 24 months, percentage
NHPI*Total PopulationRatio (NHPI* / Total)
59.667.90.88
Source: U.S. Centers for Disease Control and Prevention. (2023). National Immunization Survey-Child, United States, 2017-2022 (Supplementary Table 1). U.S. Department of Health and Human Services.

*Population is non-Hispanic in the data source.


Date Last Reviewed: January 2026