Related Clues:
- Short holiday viewed as sound, healthy preparation?
- Protective preparation made by civil engineer guarding home when on holiday
- Protective shot
- Toxin, an element feasting on skin of grape
- Antigenic preparation
- Toxin perhaps in plant I generally cut down
- Foreign invader, colonist with current information
- Trigger for immune response
- Argentina -- upset without a right means of defence
- It induces an immune response
- COVID-19 fighter
- Verified against Covid, countrywide inoculation not expected at first
- Current info by worker that could help fight infection
- Protective serum
- Break for taking photos: this is in shot?