Answer:
They have lower GDP rates which do not allow them to invest more in health care.
Explanation:
Countries that are poor economically have higher infant mortality rates than the countries which are developed and economically rich. Countries like Somalia, Afghanistan, Central African Republic are poor countries and their GDP is very less than developing and developed countries so they invest less in the health care sector compared to developing and developed countries.
Due to this reason, the health care system is poor in these countries and the infant mortality rate is very high. For example in 2018 the infant mortality rate of Afghanistan was 110.6 and Afghanistan was at first position in infant mortality rate.
Yes doctors can test the genetic predisposition of an individual to a disease but it is not done by genetic testing, unless they are chromosomal abnormalities or DNA sequencing abnormalities rather than just diseases with genetic predisposition such as malignancies. Heart disease, diabetes, and cancer; while does have a significant genetic predisposition, cannot be risk stratified by genetic tests because of (1) it is too costly and (2) it cannot be accurate. These genetic predisposition is best taken care of by doing proper history and physical examination as well as doing a family genogram.
If history and physical examination revealed that you are high risk to develop a disease (i.e. heart disease) then you should be advised to have lifestyle modification as well as some maintenance medications, if warranted.
