The risk factor analysis presented in Table 4 and Figure 3 and Figure 4 identified, in ascending order of odds ratios, chronic lung disease, liver damage, Roma ethnicity, duration from the last MMR dose, CRP, bilateral pulmonary condensation on X-ray, and elevated procalcitonin as statistically significant independent risk factors for long hospitalization and the development of pneumonia in adult patients with measles. This evidence concerns the gene CRP and pneumonia.