"illness" - key terms from Wikipedia

acute febrile respiratory illness
after long illness
after short illness
altitude illness
chronic illness
course of illness
decompression illness
depressive illness
final illness
foodborne illness
gulf war illness
health and illness
iatrogenic illness
illness
illness	and death
illness	concept
illness	if engaging in unhealthy
illness	or injury
indicative of mental illness
injury or illness	if engaging
malingering or feigning illness
mental illness
myth of mental illness
physical illness
prevention of illness
psychiatric illness
psychotic illness
recover from your illness
respiratory illness
risk of illness
s mental illness
s paralytic illness
serious illness
serious mental illness