121586
In 1898 calf lymph became the standard method of vaccination for smallpox in the United Kingdom , when arm-to-arm vaccination was eventually banned ( due to complications such as the simultaneous transmission of syphilis , erysipelas or smallpox itself ) .
 United Kingdom, syphilis
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 United Kingdom, syphilis