Monkeypox vax protection may be low, researchers warn

Their study measuring immune response to the vaccine may also challenge the dose-sparing strategy
Patient after vaccination

Questions are being raised over the effectiveness of the third-generation monkeypox vaccine used in Australia after a study found immunisation induced only low levels of neutralising antibodies.

The Dutch research, which has not been peer reviewed, found people receiving one dose of the Jynneos vaccinia vaccine “hardly developed” antibody responses and that the second dose was required to achieve detectable levels.