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Diseases.
Dengue is a dangerous disease of poor countries Like Zardari hence it is more prevalent in Pakistan.
Development.
Every Country, no matter how developed has poverty, poverty is a world wide issue, not just in less developed countries. its just that the poverty in less developed countries is talked about more than the poverty in more developed countries.
Typhoid fever more prevalent in eastern countries. It is very uncommon in western countries. It is common in developing countries, where there is poor sanitation and not so good personal hygiene is the cause for the same.
More Developed countries are consumers as they have more technology so they can focus workers on services and buy from poorer countries less developed
yes
Some diseases are more common in adults than children because adults have a more developed system.
Developed countries are countries with more developed technologies and economy. Since the United States fits this description, it is a developed country.
Brazil
While both are autoimmune diseases and both are more prevalent in women. the cause for both of these conditions is not known.
Good economy activity, And money (country income)