The phrase "kind of illness" refers to a specific type or form of sickness. It can indicate that someone is suffering from a particular disease, condition or disorder, and not just any kind of physical or mental distress.
Sentences with «kind of illness»
If certain kinds of illnesses are excluded then that can literally mean the difference wealth and bankruptcy; maybe life and death. (money.stackexchange.com)
Finally, you should know that kefir can treat many other kinds of illnesses as well. (benefitsofkefir.com)
It's all about how much risk an employee faces while on the job or what kind of illness the employee is likely to face as a result of work. (trustedchoice.com)