can I start a sentance with Especially intrigued by..Watch
Inserting "especially" in front doesn't fundamentally change the structure, so therefore you can say "Especially intrigued by virology, I completed an online course." Of course, it would only really make sense if the text preceding this sentence makes it clear what the "especially" is in relation to.
What would the whole sentence be?
is it formal and does it make sense? Especially intrigued by___, I completed___
You will want to give the best impression of yourself when you submit this, so watch out for little things like that.