Answer: The unusual occupational diseases of the past were:
- Hatters' shakes: The hatter's shakes was caused by the chemical
that were used in the hat making. The prolonged inhalation of the
mercurous nitrate as well as the mercury causes severe as well as
uncontrollable tremors in the muscles. This is known as the
hatter's shake. The major symptoms includes such as disorted speech
and poor vision.
- Potters rot: The potters rot is a disease which is caused by
the inhalation of the Silicosis. This occurs due to exposure to the
silica. The symptoms includes such as dry cough, poor breathing
pattern, more prone to tuberculosis.