vaccine hesitancy

noun

plural vaccine hesitancies

: the reluctance or refusal to have oneself or one's children vaccinated

Vaccine hesitancy can contribute to the continued spread of disease because vaccinations are not being administered.

—Fred Steiner

Scientists are expressing concern over what they call "vaccine hesitancy" regarding the COVID-19 pandemic.

—Katie Camero

WHO [World Health Organization] notes that measles cases have increased by 30 percent across the globe, and while not all cases are due to vaccine hesitancies, some countries that had nearly eliminated the disease have seen its return.

—Katie Gillespie

Examples of vaccine hesitancy in a Sentence

Recent Examples on the Web

Vaccines continue to be a polarizing topic in America, with vaccine hesitancy continuing to soar. —Omer Awan, Forbes.com, 11 June 2025

The Trump administration has cut $2.3 billion in new grant funding since its term began, as well as terminated existing grants on a wide range of topics — vaccine hesitancy, HIV/AIDS, and covid-19 — that do not align with its priorities. —Elisabeth Rosenthal, Miami Herald, 22 May 2025

Infectious disease experts worry that comments from Secretary for Health and Human Services Robert F. Kennedy Jr., who has offered mixed messages about the severity of the disease and the safety and efficacy of the vaccine, may further exacerbate vaccine hesitancy. —Jason Lange, USA Today, 15 May 2025

Adams zeroed in on vaccination as his top public health concern, noting that the National Institutes of Health recently canceled more than 40 studies of vaccine hesitancy. —Dan Perry, Newsweek, 19 Mar. 2025

Word History

First Known Use

2002, in the meaning defined above

Medical Definition

vaccine hesitancy

noun

: the reluctance or refusal to have oneself or one's children vaccinated

Scientists are expressing concern over what they call "vaccine hesitancy" regarding the COVID-19 pandemic.

—Katie Camero, The Miami Herald

Reasons for vaccine hesitancy fit into 3 categories: lack of confidence (in effectiveness, safety, the system, or policy makers), complacency (perceived low risk of acquiring VPDs [vaccine preventable diseases]), and lack of convenience …

—Shixin Shen and Vinita Dubey, Canadian Family Physician

WHO [World Health Organization] notes that measles cases have increased by 30 percent across the globe, and while not all cases are due to vaccine hesitancies, some countries that had nearly eliminated the disease have seen its return.

—Katie Gillespie, The Columbian (Vancouver, Washington)