Az alábbi mondatok hogy vannak angolul?

The problems started by a disease that is spread by ticks.

During one of the ultrasound examination, one of the doctors has noticed a dark spot on the screen.

Naturally, he/she has received medication for his/her condition and he/she is using it ever since.

The problems began with a disease, transmitted by ticks.

During an ultrasound examination, the doctor noticed a dark area on the screen.

Of course he/she was given some medication for the disease, which he/she is still taking, to this day.