Chikungunya
In chikungunya's chronic phase, almost everyone with the virus (87% - 98%) gets very bad joint pain or stiffness.  This usually lasts for weeks or months.  However, it can last for years.  The joint pain can be so bad that a person cannot move the joints that hurt.  The pain almost always happens in more than one joint.  Usually, people have pain in the joints in their arms and legs, on both sides.  These may include the joints in the wrists, ankles, hands, feet, shoulders, elbows, and knees.  The virus can also cause pain in the muscles or ligaments.