It’s no secret that vaccine hesitancy is at an all time high, even among many physicians and scientists. This has actually been observed for a while. For example, one study published in the journal EbioMedicine in 2013 outlines this point, stating in the introduction:
Over the past two decades several vaccine controversies have emerged in various countries, including France, inducing worries about severe adverse effects and eroding confidence in health authorities, experts and science. These two dimensions are at the core of vaccine hesitancy (VH) observed in the general population. VH is defined as delay in acceptance of vaccination, or refusal, or even acceptance with doubts about its safety and benefits, with all these behaviours and attitudes varying according to context , vaccine and personal profile, despite the availability of vaccine services VH presents a challenge to physicians who must address their patients’ concerns about vaccines and ensure satisfactory vaccination coverage.
At a 2019 conference on vaccines put on by the World Health Organization this fact was emphasized by Professor Heidi Larson, a Professor of Anthropology and the Risk and Decision Scientist Director at the Vaccine Confidence Project. She is referenced, as you can see, by the authors in the study above.