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  Indian J Med Microbiol
 

Figure 3: Number of cases, deaths, and lethality rates of sylvatic yellow fever confirmed in Brazil from 1980 to 2017. In most years, the fall in lethality rates coincides with the peaks of cases, and that when there are few cases an increase in the lethality rates is observed[27],[32],[34],[40].

Figure 3: Number of cases, deaths, and lethality rates of sylvatic yellow fever confirmed in Brazil from 1980 to 2017.
In most years, the fall in lethality rates coincides with the peaks of cases, and that when there are few cases an increase in the lethality rates is observed<sup>[27],[32],[34],[40]</sup>.