Examples
罹患[
rikan] contracting a disease
罹災[
risai] suffering (from a calamity)
罹災者[
risaisha] victims
罹災民[
risaimin] victims
罹病[
ribyou] contraction of a disease
罹る[
kakaru] to suffer from
病気に罹る[
byoukinikakaru] to contract a disease
罹患率[
rikanritsu] disease rate