NAVLE（北美执业兽医考题）Day 797

单选题，正确答案是100分，非正确答案为0分，Good Luck！

Q1:The dog in the photograph was vaccinated earlier in the day. What type of allergic reaction is occurring?下图中的狗在当天稍早的时候注射了疫苗。这是发生了哪一种过敏反应？[图片]

A Type I