Other potential problems in the breed include patella luxation (dislocating kneecap), hip dysplasia (degeneration or malformation of the hip joint), Legg - Perthes (breakdown of the femoral head, the «ball» of the ball - and - socket hip joint), and a form
of encephalitis apparently unique to the breed.
It notes some
of the critical scientific questions regarding Zika that deserve further exploration, including: whether certain viral mutations occurred to facilitate its geographical spread; if different species
of Aedes mosquitoes are capable
of transmitting Zika and what that may mean for future transmission; what is
apparently unique to Zika compared to other more well - known flaviviruses, such as dengue, that can explain why it can cause congenital infections, neurological conditions and
encephalitis, transmit sexually and persist for long periods
of time in multiple parts
of the human body; and whether preexisting immunity to other related flaviviruses may impact Zika exposure and infection.