外来患者[gairaikanja] outpatients
患う[wazurau] to be ill
患者[kanja] (a) patient
患難[kannan] affliction
患部[kanbu] affected part

急患[kyuukan] emergency case
歯牙疾患[shigashikkan] dental disease
疾患[shikkan] disease
収容患者[shuuyoukanja] in-patients
重患[juukan] serious illness

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