Angioedema, an unusual reaction to hair dye.

Angioedema is a type-1 hypersensitivity reaction that can be life threatening. It affects the skin airways and the gastrointestinal tract. Henna is a green powder used to dye skin and nails.

Blood and virus detection on barber clippers.

Background: Bleeding from the popular clean-shave 'chiskop' haircut was recently reported as prevalent in South Africa (SA), a country with 6.9 million HIV-infected people.

Objectives: To investigate the prevalence of barber hair clipper contamination with blood and HIV and hepatitis B viruses.