Related Clues:
- Remarkably, it's manure giving protection from disease
- Protection against a cold reportedly identified
- Plant containing source of this unusual medical treatment
- Antibody stimulator
- Short holiday viewed as sound, healthy preparation
- Inoculant needs a small volume injected into climber
- Possible treatment, mixture of tisane and rum
- Immunising agent that vice can ruin
- With one getting bitten, mate runs for restoring immunising agent
- Preparation for inoculations
- Short holiday viewed as sound, healthy preparation?
- Protective preparation made by civil engineer guarding home when on holiday
- Protective shot
- Antigenic preparation
- COVID-19 fighter