When did "jabs" become a synonym for "vaccine"? Australian health officials have been using the term as well. This is imprecise if not outright incorrect language: a drug delivery mechanism (injection or "jab") is independent of the drug being delivered.

Different drugs have different fitness for purpose, side effects and compatibility with other drugs. There is a broad range of research drugs proposed for conferring immunity to SARS-COV-2, only a subset of which have the properties (e.g. low virus dose) of a traditional vaccine.

If health officials want to increase trust, they may want to use more precise language to separate known-good approaches from not-yet-known-good, a.k.a. ongoing research. Do not blur scientific and legal/financial liability categories, which vary by the drug being injected.