Rosacea is a chronic cutaneous disease of the convexities of the central face (cheeks, chin, nose and central forehead) w/ periorbital and perioral skin sparing. This condition is attributed to chronic vasodilation.
Remissions and exacerbations are common.
It typically appears after 30 years of age but may occur at any age. It commonly affects fair-skinned individuals.
The common presenting symptoms are facial flushing, stinging/burning erythema, telangiectasia, edema, papules, pustules, ocular lesions, and hypertrophy of the sebaceous glands of the nose with fibrosis.
A history of episodic flushing often heralds onset of rosacea.
There appears to be a substantial number of patients developing chronic joint pain at a median of 20 months following infection with chikungunya virus, as shown in a study involving a large Latin American cohort.
A novel smartphone-based diagnostic device
shows promise for rapid and low-cost detection of Zika, dengue and chikungunya
viruses, and may particularly be useful as a a
point-of-care assay in resource-limited areas.