I hear your question as being "Has my father contracted the virus?" If we take your father as ruler of the 4th, Merc, and illness and disease as ruler of the 6th, Sun, then we see that they did not aspect recently, nor will they for quite some time. And before Merc does come along to aspect Sun at the end of Scorpio, Moon first aspects aspects conjuncts Sun, and Merc aspects Mars. So I do not see a clear line between your father and the virus in the near term either.
I hope this delineation of the chart may be correct and I am sorry for the stress you must be experiencing surrounding this matter.