Q4: Is Minamata disease infectious?
A4: It is never infectious.
When Minamata disease was officially reported for the first time, the rumor
that it was an infectious disease spread because the cause was not known.
Thus, it was wrongly believed that the disease was infectious, which was
one of the reasons why patients suffered discrimination in those days.
However, Minamata disease is caused by methylmercury poisoning, and is