The phrase "vulnerable to illness" is grammatically correct and can be used in written English.
It is often used to describe someone or something that is prone to getting sick easily. Example: "The elderly are particularly vulnerable to illness, so it is important for them to get regular check-ups and vaccinations."
In the widening inequalities of urban societies, hard work on low-protein diets left most people vulnerable to illness and early death.
College students are already vulnerable to illness, thanks to stress and physical exertion from staying up late, along with unhealthy habits like smoking and drinking in excess.
Nighttime temperatures that sometimes dip to 50 degrees Fahrenheit also make the crocodiles vulnerable to illness, although the farm tries to protect them by covering their pools with canvas.
Without a proper place to live, adequate nutrition or access to basic medical necessities, freed slaves became more vulnerable to illness than Union soldiers, and as a result, hundreds of thousands of slaves became sick and died at the moment of freedom — a bitter irony often ignored in favor of a more triumphant narrative about emancipation.
Children in poor household are also more vulnerable to illness [11].
It is also really bad for their health making them more vulnerable to illness and disease".
Other case studies in the report describe some among the millions of women who rely on their own parents – themselves sometimes vulnerable to illnesses and exhaustion and in need of care – to look after their children while they work.
Outside a packed children's hospital in downtown Beijing, parents and grandparents complained about the smog's impact on small children and say the pollution has made their children vulnerable to illnesses such as throat infections and the flu.
Burnout can cause long-term changes to your body that make you vulnerable to illnesses like colds and flu.
Mayer pointed out that many of the people who lost their homes are elderly or disabled, which makes them especially vulnerable to illnesses — and to the freezing temperatures at night.
"When people are poor and dislocated, they become more vulnerable to illnesses, it makes children susceptibly to bowel disease and diarrhea," Gawain Kripke, director of Policy and Research at Oxfam America, told VICE News.
