You are given a sentence in Persian. Your job is to translate the Farsi sentence into English.

بعد از اون به هلند آمدم كه الان مشغول تحصيل در مقطع دكترا در رشته ايمني شناسي نظري هستم.
After that, I came to the Netherlands where I'm now doing a Ph.D. in theoretical immunology.