State

Strategy

Healthy

Infected

with primary strain

with secondary strain

Vaccinated (V)

$-C_v$

$-C_v-1$

$-C_v-1$

Self-protected (M)

$-C_m$

$-C_m-1$

$-C_m-1$

Non-provisioned (free-rider, F)

0

−1

−1