+ Case fatality rate (CFR) and frequency of<unk>  by type and vaccination status according to Rao case study Type of disease Ordinary Confluent Ordinary Semiconfluent Ordinary Discrete Modified Flat Early Hemorrhagic Late Hemorrhagic Unvaccinated CFR 62% 37% 9.3% 0% 96.5% 100% 96.8% Vaccinated CFR 26.3% 8.4% 0.7% 0% 66.7% 100% 89.8% Unvaccinated Frequency 22.8% 23.9% 42.1% 2.1% 6.7% 0.7% 1.7% Vaccinated Frequency 4.6% 7% 58.4% 25.3% 1.3% 1.4% 2.0% There were two forms of the<unk>  virus. Variola major was the severe and most common form, with a more extensive rash and higher fever. Variola minor was a less common presentation, causing less severe disease, typically discrete<unk> , with historical death rates of 1% or less. Subclinical (asymptomatic) infections with Variola virus were noted but were not common. In addition, a form called variola sine eruptione<unk>  without rash) was seen generally in vaccinated persons. This form was marked by a fever that occurred after the usual incubation period and could be confirmed only by antibody studies or, rarely, by viral culture. In addition, there were two very rare and fulminating types of<unk> , the malignant (flat) and hemorrhagic forms, which were usually fatal.
Smallpox
Monkeypox
Cowpox
Impetigo
Chickenpox
Sealpox
Molluscum contagiosum
Mumps