The Relationship between Tuberculosis and Influenza Death during the Influenza (H1N1) Pandemic from 1918-19

Figure 2

Age distributions of influenza pandemic 1918-19 in the USA and Japan. (a), (b), (c), (d), (e), (f), (g), (h), and (i) respectively, show (mortality, morbidity, and the case fatality ratio) in Baltimore, localities other than Baltimore, and Japan [17–19]. Mortality and morbidity refer to the total number of deaths per 100,000 persons and the total number of cases per 100,000 persons, respectively. The case fatality ratio is the proportion of deaths among cases.

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)

(i)