About one-third of Taiwanese are likely to develop shingles, also known as herpes zoster, in their lifetime, and about half of people aged 50 or older who contract the disease could develop post-herpetic neuralgia (PHN), a long-term nerve pain complication, the Taiwan Immunization Vision and Strategy (TIVS) said on Wednesday. The group advises people to get a shingles vaccination. Shingles is caused by the reactivation of the varicella-zoster virus — the same virus that causes chickenpox — and often occurs when the immune system becomes weakened. Studies show that 32.2 percent of Taiwanese...