The sentence 'develop an illness' is correct and usable in written English.
You would use it when referring to someone's health deteriorating, and becoming ill. For example: After months of stress and exhaustion, he began to develop an illness.
During the year, you could develop an illness that requires a drug that your plan does not cover.
You may think you are secure, she would say time and again to her mainstream audiences, but take another look in the mirror: you could lose your job, you could change your job, and in the course of that flux you or a family member could develop an illness that would make you uninsurable.
In December 1928 John began to develop an illness as a result of his poison gas attack in the war, and died December 13.
A pathogen becomes more dangerous when it can be grown in large quantities, stay intact longer, exist in smaller particles, require a lower dose to infect people, spread easily, and lead more infected people to develop an illness.
We will exclude children if they are likely to be moving school during the trial period, or if they develop an illness or behaviour that warrants admission to a psychiatric unit (eg, psychosis and serious self-harm).
The very question that patients and families frequently ask me why does one person develop an illness when challenged with an environmental agent while another person remains healthy?—represents the focus of my research and has led me to the NIEHS.
After strict temperature surveillance and monitoring, none of the contacts including the 7 other soldiers who had some form of close contact with very ill cases developed an illness consistent with Lassa fever.
Mr. Lieberman said he had not thought about what disclosures he would make if he developed an illness as vice president.
It involved a questionnaire sent to 3,100 health workers at Children's Hospital in Denver, asking whether they had been vaccinated, when and whether they developed an illness compatible with influenza.
Some scientists have warned that genetic testing could be problematic where genes are identified before therapies exist, meaning that people could be told that they have a risk of developing an illness, with no options to treat it.
There was some speculation about whether the tough Russian leader had developed an illness or health problem.
