Americans could have seemingly reached a state of “vaccine fatigue,” causing most of them to refuse the vaccine boosters for continued protection against COVID-19.

When the U.S. government rolled out the Covid bivalent booster doses last September, public health experts were hopeful that many would grab the prospect to remain protected against the virus and its newer Omicron subvariants.

Unfortunately, official data showed that the primary bivalent booster was not as well-received as experts had hoped. Only 27.1% of adults and 18.5% of adolescents received the jabs between November and December 2022.

Despite the poor reception, the federal government continues to be highly more likely to offer one other bivalent booster dose because the protection afforded by the primary dose has began to wane. But as of late, the U.S. Food and Drug Administration (FDA) continues to be undecided on the spring booster for COVID-19.

Nevertheless, Americans may have already got vaccine fatigue, which the American Medical Association (AMA) defines as “unwillingness or inaction toward vaccine information or instruction as a result of perceived burden or burnout.”

Per the newest data obtained by AMA, only 15.8% of the U.S. population have received the updated bivalent booster shots despite the spread of the highly transmissible XBB.1.5 Omicron subvariant within the country.

Outside the U.S., other countries are experiencing the identical phenomenon. A recent study published within the journal Nature Medicine found that the willingness of individuals to get vaccinated in Austria and Italy was relatively low.

Researchers surveyed 6,357 people within the two European countries. Respondents were asked to rate their “readiness to get vaccinated” on a scale of 0 to 10. The typical rankings were 5.8 in Italy and 5.3 in Austria.

“Respondents in each countries reported high levels of pandemic fatigue and showed low to medium levels of trust in parliament and government,” the study authors wrote, noting that low trust in medical institutions, governments and vaccinations was common among the many respondents.

Dr. Norman B. Gaylis, the medical director on the Immunotherapy Center of South Florida and long COVID expert, told Fox News Digital that many individuals have seemingly lost faith within the vaccines for various reasons.

“Unfortunately, many individuals consider that COVID is not any longer a serious health threat they needs to be concerned about,” he identified after stating that many lost their trust amid the conflicting viewpoints and controversies surrounding the protection and adversarial effects of the vaccine.

A medical employee prepares a Moderna Covid-19 vaccine on the Hospital Sant Joan de Deu in Barcelona on January 16, 2021
AFP / Josep LAGO