Antiviral Stockpile Model

Antivirals are modeled as a stockpile-constrained intervention. They can move people from eligible compartments, usually E and I, into T.

Important parameters:

Parameter	Meaning
antiviral_stockpile	List of release days and dose counts.
age_risk_priority_groups	Age/risk targeting. 0, 0.5, and 1 match vaccine targeting semantics.
eligible_compartments	Compartments that may receive treatment, usually ["E", "I"].
compartment_priority	Order used when a group has both E and I candidates.
antiviral_capacity_proportion	Maximum fraction of node population that can be treated per day.
antiviral_half_life_days	Optional stockpile decay after day 0.

Disease parameters then describe treated people:

Parameter	Meaning
T_to_R_days	Average duration from treated infectious to recovered.
rel_inf_T_to_I	Relative infectiousness of treated people compared with untreated I.

If the compartment list includes T but no antiviral model is configured, the simulator warns. The model can still run, but no people enter T.