News about the prevention of Herpes zoster was shown on the paper of Medical Tribune at Descender 24. It is reports of Shozu island study by Yosinobu Okuno. The rate of attack in a year is about 1%, and the peak is 70 ager. According to the skin test by injection of antigen of chicken pox virus, size of redness of skin is inverse proportion for the attack of the disease. That is to say, the decline of cellular immunity is related to the attack. He said the vaccination by the chicken pox virus is effective for the prevention of Herpes zoster.