Would a virus with a lethality of, say, 10% really have its infectiousness damaged that badly by 1 in 10 sufferers dying? I appreciate that once you get up to

Would a virus with a lethality of, say, 10% really have its infectiousness damaged that badly by 1 in 10 sufferers dying? I appreciate that once you get up to a more substantial fraction, people die before they can spread the disease... but "too deadly to spread" is a much higher number than "deadly-enough to literally decimate its carriers".