import pymc as pm


def model(data):
    """Floor model: ignores time and fits one infection probability."""
    with pm.Model() as result:
        y = pm.Data("y", data["Infected_Count"])
        p = pm.Beta("p", alpha=1, beta=1)
        pm.Binomial("Infected_Count", n=50, p=p, observed=y)
    return result