细小病毒感染可以引起遗传上易患类风湿性关节炎的病人发病。Exeter大学的医生指出,150名具有早期关节炎症状的门诊病人,9人具有细小病毒抗体,表明已被感染,其中4人迅速发展成明确的类风湿性关节炎,其他5名病人症状几周后消失。研究人员对类风湿性关节炎进行了一些遗传研究,将约80％患有类风湿性关节炎病人与30％携带有DR4基因的普通人群相比较。发现患有类风湿性关节炎的病人中有DR4基因 Parvovirus infection can cause disease in patients genetically predisposed to rheumatoid arthritis. Doctors at Exeter University pointed out that out of 150 patients with early-onset arthritis symptoms, 9 had parvovirus antibodies, indicating that they had been infected, 4 of them quickly developed definite rheumatoid arthritis and 5 had symptoms of several weeks After disappearing. Researchers have done some genetic research on rheumatoid arthritis, comparing about 80% of patients with rheumatoid arthritis to 30% of the general population carrying the DR4 gene. DR4 gene was found in patients with rheumatoid arthritis