Lice are interesting. A little gross too, but definitely interesting. Sometimes the most interesting thing can be trying to trace an infestation through a family. Usually, we can tell by who has the most nits and live activity and that person is our "Patient Zero." It is equally fascinating to look at a family and see who has gotten lice and who has not. What leaves us scratching our heads sometimes (no pun intended) is when we see a family wherein several family members have become infested, but we have twins and one has remained clear. Truly, there are no closer siblings than twins, so how can it be that we have one twin affected and another completely clear? With fraternal twins, we attribute it to different blood types and good luck. It is much more difficult to explain and understand when we see identical twins, the same in every genetic way, and one is affected and the other is not. It almost defies explanation.
And thus, as it was once said to me, "With lice, if you've seen one case, you've seen one case." Sometimes, no matter what conventional wisdom tells you should be true, you just get a different answer.
Got a lice question that needs answering? Tweet me @njlicelady ,or email firstname.lastname@example.org.