I'm not sure what the options are for an answer but based on what I remember from my ENTO class, it would be secondary myiasis.
Where is the table that has the data?
The testes are oval organs about the size of very large olives that lie
in the scrotum, secured at either end by a structure called the
spermatic cord. Most men have two testes. The testes are responsible for
making testosterone, the primary male sex hormone, and for producing
sperm.
A movement of alleles resulting from migration. I hope I helped