According to twin studies, it has been estimated that the heritability of major depressive disorders (MDD) is around 37% to 40%. On average, people who share at least 50% of their genes with a family member that has MDD has more than 2 times at risk of having MDD themselves.
It has also been concluded from research that negative affectivity, or neuroticism, has a major link with the onset of MDD. In response to a stressful life, individuals with high levels of neuroticism are at a higher risk of developing MDD
It will be most appropriate to assign the patient to a room with roommate having the same MRSA case in the urine and importantly the roommate is not bedridden, that is, the he or she is ambulant
