Hong Kong authorities said one woman died and three others had to be hospitalized after undergoing a beauty treatment involving blood transfusions.
Hong Kongs Hospital Authority said a 46-year-old woman died of septic shock on Wednesday after receiving the treatment at a beauty clinic. The treatment is being tested as a method to fight cancer,but here it was used for cosmetic purposes.
The case has raised concerns about potentially risky medical treatments at the citys numerous clinics offering procedures that claim to enhance ones appearance.
Health Secretary Ko Wing-man promised to review regulations governing the clinics and other private medical facilities. Ko said the review would look at putting private clinics that carry out high risk medical treatments or procedures under regulatory control.
Health authorities are investigating whether a registered doctor carried out the treatment and whether the procedure was certified by Hong Kongs Medical Council.
The four also tested positive for a rare superbug called mycobacterium abscessus,which is extremely resistant to antibiotics.
The treatment costs at least 50,000 Hong Kong dollars ($6,450),according to local news reports.
The procedure,known as DC-CIK,involves concentration and processing of blood by a lab before it is re-injected into the person it was drawn from,the government said. It is being tested as a way of raising the survival rate of cancer patients.
Beauty clinics offering the treatment in Hong Kong promise to people look younger,with whiter skin and smaller pores,and strengthen their immune system. But the procedure does not appear to have any proven cosmetic effect.