T5 - Multi-route transmission

Transmission can occur via both routes in the same model: the contact transmission route (via networks) and the environmental transmission route. These routes are independent of each other. Interventions can attenuate and/or amplify the contribution of each route, including blocking it altogether.

import starsim as ss
import typhoidsim as ty

# Define high-level simulation parameters
pars = dict(
    start    = 2000,  # Starting year
    dur      = 1.0,   # Duration of the simulation in years
    dt       = 1.0/365.0,     # Timestep of 1 day, expressed in years
    verbose  = 0,             # Do not print details of the run
)

# The population
ppl = ss.People(10_000)

# The environment the population is affected by, and can carry the pathogen
environment = ty.EnvironmentalPool()

# Person to person transmission
random_p2p = ss.RandomNet({'n_contacts': 5})

# The disease 
typhoid = ty.Typhoid()

sim = ss.Sim(
    pars=pars,
    people=ppl, 
    demographics=environment,
    networks=random_p2p,
    diseases=typhoid,
    )
sim.run()
sim.plot()

Figure(1152x864)

/opt/hostedtoolcache/Python/3.12.15/x64/lib/python3.12/site-packages/starsim/time.py:2455: UserWarning: AutoDateLocator was unable to pick an appropriate interval for this date range. It may be necessary to add an interval value to the AutoDateLocator's intervald dictionary. Defaulting to 6.
  vticks = self._date_locator() # The internal date locator will return the tick positions in matplotlib units