[Administrative issues linked to health insurance coverage of chronic post-chikungunya rheumatism].

The chikungunya outbreak on Reunion Island in 2005-2006 was followed by a high incidence of persistent arthralgia. A small group of patients developed chronic, sometimes destructive, post-chikungunya inflammatory rheumatism presenting as rheumatoid polyarthritis or spondylarthritis that required disease-modifying antirheumatic drugs such as methotrexate. We describe two patients under this treatment confronted with financial health insurance issues due to the lack of administrative recognition of post-chikungunya rheumatism as a long-term affliction or an occupational disease.