A hypothetical TB vaccine refers to a vaccine that currently does not exist. It is a hypothetical scenario with a vaccine that may protect against infection and/or disease and/or recurrence to a certain extent. Usually WHO guidance is followed to inform these hypothetical vaccines (An investment case for new tuberculosis vaccines (who.int).
The cost and cost-effectiveness of novel tuberculosis vaccines in low- and middle-income countries: A modeling study
We assessed future costs, cost-savings, and cost-effectiveness of introducing novel TB vaccines in low- and middle-income countries (LMICs) for a range of product characteristics and delivery strategies.