 This 32 y/o RHF had been performing missionary work in Jos, Nigeria for several years and delivered her 4th child by vaginal delivery on 4/10/97. The delivery was induced with Pitocin, but was otherwise uncomplicated. For the first 4 days post-partum she noted clear liquid diarrhea without blood and minor abdominal discomfort. This spontaneous resolved without medical treatment. The second week post-partum she had 4-5 days of sinusitis, purulent nasal discharge and facial pain. She was otherwise well until 5/4/97 when stationed in a more rural area of Nigeria, she noted a dull ache in both knees (lateral to the patellae) and proximal tibia, bilaterally. The pain was not relieved by massage and seemed more bothersome when seated or supine. She had no sensory loss at the time.