And if the OB-GYN is making that kind of contamination error, the results of that are likely going to be washed out by HPV cross-contamination. This is like as

And if the OB-GYN is making that kind of contamination error, the results of that are likely going to be washed out by HPV cross-contamination. This is like asking how many times someone had been killed by the shell casing from an automatic weapon. It might not be zero, but we're talking some pretty one-off, House M.D.-esq circumstances.