Former PoWs, who are demanding an apology for their treatment, say the decision highlights the sensitive timing of the award at a time they are still fighting for compensation.
In a procedure known as photodynamic treatment, which has been studied for years, certain pharmaceutical ingredients that are sensitive to light can kill acne when turned on by specific light wavelengths.
In the treatment of patients, the WHO recommends that testing be done to determine to what medications the bacteria are sensitive and that the regimen for a known case of MDR-TB must include at least five agents belonging to different families of drugs.