Bacillus anthracis
Similar approaches have been used for a variety of other human pathogens, such as "Streptococcus pneumoniae", "Chlamydia pneumoniae", "Bacillus anthracis", "Porphyromonas gingivalis", "Mycobacterium tuberculosis", "Helicobacter pylori", amongst others. Additionally, studies have started for the development of vaccines against viruses.