Microbiology is important because it involves the study of things that cause infections like bacteria, viruses, fungi, parasites etc. If a person suffers from frequent infections that prove resistant to antibiotics or other treatments, then a disability case can be made, especially where too many work absences occur. Usually, one cannot maintain employment if they miss more than one day a month consistently due to illness. A person who suffers from frequent infections of any kind that have interfered with work attendance and have resulted in the loss of a job should consider applying for Social Security Disability.