If you are interested in teaching as a profession and if you are interested to pursue your masters degree, and you are basically a science student, then microbiology is the best suited to pursue a masters in. Teaching is a noble profession, and the returns after completing your study is tremendous. And again the scope is vast as it is the basic subject of study in all medical colleges as well as Para medical colleges like dental science, physiotherapy, pharmaceutical science, nursing science, radiography, lab technology etc. It is the most highly paid among the teaching profession in science, even at the initial stage as a beginner. As well you get an opportunity to work among the dignified doctors and amongst the highly esteemed medical professionals. Academic microbiologists are employed by universities, schools and teaching hospitals.