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Major · Biological & Biomedical Sciences

A specialized lab science with a graduate-school or clinical-credential ramp

Medical Microbiology and Bacteriology is the scientific study of pathogenic bacteria and the cellular, genetic, and immunological mechanisms behind human infectious disease. About 443 bachelor's degrees are awarded each year across just 14 colleges, and completers report a five-year earnings median of $64,794. The career list is structurally graduate-credentialed: medical scientists at $100,590, postsecondary health-specialties teachers at $105,620, and biological science teachers at $83,460 all require a doctoral or professional degree. Bachelor's-only graduates typically enter as biological technicians ($52,000) or as clinical microbiology technologists in hospital labs ($60K–$78K) — and the bachelor's functions primarily as a pre-PhD, pre-MD/PA, or pre-CLS/MLS ramp.

Schools offering
14
Annual completions
443
Typical degree level
Bachelor's
Median earnings (5yr)
$65k

About this major

Medical Microbiology and Bacteriology is the scientific study of pathogenic bacteria — the bacterial organisms that cause or facilitate human disease — and the cellular, genetic, structural, and immunological mechanisms behind infection. The CIP definition covers bacterial pathogenesis, bacterial genetics and physiology, bacterial anatomy and structure, antigens, bacterial reproduction, bacterial adhesion to host tissues, phagocytosis, and the identification of new or mutated bacteria and bacterial agents. Typical curricula build from general biology, general and organic chemistry, and introductory microbiology into specialized coursework in medical microbiology, virology, parasitology, mycology, immunology, microbial genetics, and bacterial pathogenesis, with substantial laboratory training in aseptic culture, biochemical and molecular identification, antimicrobial susceptibility testing, PCR, gel electrophoresis, microscopy, flow cytometry, and increasingly whole-genome sequencing and bioinformatics.

Program scale is small and concentrated. Just 443 bachelor's degrees are awarded each year across 14 colleges, with no associate's pathway. The University of Florida dominates the landscape with 215 main-campus bachelor's completions plus 26 online, accounting for roughly 54 percent of all US bachelor's degrees in this CIP. Montana State University-Bozeman (65) is the next-largest producer, reflecting its long infectious-disease research history. Mississippi State (34), Auburn (27), University of Minnesota-Twin Cities (26), New Mexico State-Las Cruces (19), University of South Florida (11), University of Central Florida (8), and Pennsylvania State University-University Park (7) round out the top ten. The narrow 14-college landscape is itself meaningful: this is a specialized CIP most often chosen by students with specific medical-microbiology or pre-clinical-lab targets and access to a research-active program. The related-majors data confirms adjacency to Biology/Biological Sciences, General (CIP 26.0101, 83,027 annual completions — the massively larger biology umbrella), Neuroscience (9,625), Biochemistry (8,736), Biomedical Sciences, General (6,553), Exercise Physiology and Kinesiology (5,770), Cell/Cellular and Molecular Biology (3,392), Nutrition Sciences (3,240), and Microbiology, General (CIP 26.0502 in the related-majors index — note the parent CIP 26.0501 is the broader sibling at ~2,120 annual completions).

The earnings picture is moderate for a science degree, with a structural ceiling that requires graduate or specialty credentials to break. Bachelor's completers report a five-year median of $64,793.92. The career list shows six destinations with sharp credential-tier stratification. Doctoral-required: medical scientists, except epidemiologists (SOC 19-1042) at $100,590 with 8.7% projected growth, health-specialties postsecondary teachers (SOC 25-1071) at $105,620 with 17.3% growth, biological science postsecondary teachers (SOC 25-1042) at $83,460 with 7.3% growth, and the upper tier of biological scientists, all other (SOC 19-1029) at $93,330 with 1.2% growth. Bachelor's-entry: biological technicians (SOC 19-4021) at $52,000 with 3.5% growth, and natural sciences managers (SOC 11-9121) at $161,180 with 3.7% growth — the latter is a 10–15-year mid-career role, not a first-job destination. The gap between the $64,794 five-year median and the $100,590 medical-scientist wage reflects the credential-tier reality: most graduates start as $45K–$58K biological technicians at industrial, clinical, or public-sector labs, or move into clinical microbiology technologist roles at $60K–$78K after ASCP certification. The full earnings ceiling — medical scientist, public-health-lab director, FDA reviewer, pharma R&D senior scientist, infectious-disease researcher — requires a PhD plus postdoctoral experience, an MD or DO, or specialty PA credentialing. Roughly half of Medical Microbiology bachelor's graduates continue to graduate or professional school; the bachelor's alone serves primarily as a pre-graduate-school or pre-clinical-credential ramp.

Section 3 · Careers

Where this major leads

Occupations most often associated with this major, from the federal BLS+O*NET crosswalk. Job-growth projections and median wages are national.

Occupation Median wage Job growth Typical education
Health specialties teachers, postsecondary $106k +17.3% Doctoral or professional degree
Medical scientists, except epidemiologists $101k +8.7% Doctoral or professional degree
Natural sciences managers $161k +3.7% Bachelor's degree
Biological technicians $52k +3.5% Bachelor's degree
Biological science teachers, postsecondary $83k +7.3% Doctoral or professional degree
Biological scientists, all other $93k +1.2% Bachelor's degree
Section 4 · Earnings

Earnings at a glance

Median graduate earnings from the federal College Scorecard, 5 and 10 years out.

Median 5-year earnings

$65k

Who this major is for

Students with a clear, specific interest in human infectious disease, bacterial pathogenesis, clinical laboratory medicine, vaccine development, antimicrobial-resistance research, public-health surveillance, or pre-medical preparation with an infectious-disease angle are the core audience. Comfort with general and organic chemistry (both required), biochemistry, and substantial wet-lab work all indicate strong fit. Students should arrive with realistic expectations about the credential ladder: the bachelor's alone reaches biological technician and clinical-lab roles at $45K–$78K, and the higher-wage destinations on the career list — medical scientist at $100,590, postsecondary faculty at $83K–$105K, FDA or CDC senior researcher — all require doctoral credentials or specialty professional degrees.

Students targeting direct industry employment after the bachelor's should prioritize programs with substantial hands-on laboratory coursework, summer research placements at industry or government labs (CDC pathway internships, NIH summer research, NSF REU programs, pharmaceutical-company internships), and articulation with a NAACLS-accredited clinical-laboratory-scientist track if hospital-lab employment is the target. Students considering medical school, dental school, or PA school should confirm that physics (one full year with lab), additional organic chemistry, biochemistry, English composition, and statistics are accommodated in the curriculum — some Medical Microbiology programs assume a heavier microbiology-specialty load that crowds out med-school prerequisites, requiring post-bac coursework before applying. Students considering a microbiology PhD should build research relationships with faculty early, identify subfield interests (bacterial pathogenesis, virology, microbial genetics, antimicrobial resistance, infectious-disease genomics), and pursue REU summer programs at major research universities and federal labs. Adding bioinformatics and computational-biology fluency — Python, R, Bash, common variant-calling and assembly pipelines, basic Linux command-line — materially improves outcomes whether the destination is industry, public health, or graduate research.

Reconsider this major if the primary draw is pre-medical preparation without a specific microbiology focus — Biology, General (83,027 annual completions) or Biomedical Sciences, General (6,553) preserves more flexibility for med-school applications, provides broader prerequisite coverage, and offers a far larger program selection. If the interest is broader microbial science including environmental, industrial, or food microbiology, the parent Microbiology, General CIP (~2,120 annual completions, 99 colleges) is broader and gives more career optionality. If the draw is molecular mechanisms and pharmaceutical drug-discovery research, Biochemistry (8,736 completions) or Cell/Cellular and Molecular Biology (3,392) offers stronger chemistry and molecular-biology preparation. Students drawn to clinical-lab work specifically should consider whether a directly NAACLS-accredited Medical Laboratory Science (CIP 51.1005) program is a more efficient route to ASCP certification than this academic-microbiology major. Finally, weigh the program-landscape concentration honestly: with just 14 colleges nationally and over half of all US degrees produced at the University of Florida, students applying from outside top-producing states should evaluate whether a closer Microbiology General program offers comparable preparation with better proximity, internship access, and lower opportunity cost — the narrow program landscape is itself a signal that this CIP is most efficiently pursued at a research-active program with strong infectious-disease research infrastructure.

Section 6 · Where to study

Top colleges for Medical Microbiology and Bacteriology

Ranked by annual completions at the associate's or bachelor's level — a proxy for program scale.

College Location Assoc. Bach. Total
University of Florida Gainesville, FL 0 215 215
Montana State University Bozeman, MT 0 65 65
Mississippi State University Mississippi State, MS 0 34 34
Auburn University Auburn, AL 0 27 27
University of Florida-Online Gainesville, FL 0 26 26
University of Minnesota-Twin Cities Minneapolis, MN 0 26 26
New Mexico State University-Main Campus Las Cruces, NM 0 19 19
University of South Florida Tampa, FL 0 11 11
University of Central Florida Orlando, FL 0 8 8
Pennsylvania State University-Main Campus University Park, PA 0 7 7
Section 7 · Explore sideways

Related majors to explore

Biology/Biological Sciences, General

83,027 completions/yr

Neuroscience

9,625 completions/yr

Biochemistry

8,736 completions/yr

Biomedical Sciences, General

6,553 completions/yr

Exercise Physiology and Kinesiology

5,770 completions/yr

Cell/Cellular and Molecular Biology

3,392 completions/yr

Nutrition Sciences

3,240 completions/yr

Microbiology, General

2,120 completions/yr
Section 9 · Frequently asked

Common questions

Is a bachelor's in Medical Microbiology a terminal degree, or is graduate school assumed?
Graduate school is structurally assumed for the higher-wage destinations on the career list, even if it isn't required for entry-level employment. Of the six tracked careers, four require a doctoral or professional degree: medical scientists at $100,590, health-specialties postsecondary teachers at $105,620, biological science postsecondary teachers at $83,460, and most biological scientists in the all-other category at $93,330 (the upper tier of that bucket is PhD-credentialed). The two genuinely bachelor's-entry destinations are biological technicians at $52,000 (3.5% growth) and natural sciences managers at $161,180 — but the latter is a 10–15-year mid-career role, not a first job. The $64,794 five-year bachelor's median sits well below the medical-scientist wage and reflects the early-career reality: most graduates start as $45K–$58K lab technicians or move into clinical-lab-scientist roles after additional certification. Roughly half of medical microbiology graduates continue to PhD, MD, DO, DDS, PA, or specialized clinical-lab credentialing programs; treating the bachelor's as the finish line caps earnings near the technician tier.
Can I become a clinical microbiology technologist (CLS/MLS) with this degree?
Often yes, but only with deliberate course alignment and a separate national certification. The American Society for Clinical Pathology Board of Certification (ASCP BOC) administers the Medical Laboratory Scientist (MLS) and the specialty Microbiology Technologist (M-ASCP) credentials, both of which can be reached through several routes after a Medical Microbiology bachelor's. The most common path is the categorical/specialty route: graduates with bachelor's-level coursework in medical microbiology, immunology, biochemistry, hematology, and clinical chemistry plus documented clinical laboratory experience can sit the M-ASCP or MLS exam. Some programs articulate directly with hospital-based CLS/MLS internships (typically 6–12 months) that satisfy the experience requirement; others require graduates to complete a separate post-baccalaureate NAACLS-accredited program. Wages for ASCP-certified clinical microbiology technologists at hospital labs and reference labs (Quest, LabCorp, Mayo Clinic Labs, ARUP) sit at $60,780 BLS median for medical and clinical laboratory technologists, with experienced specialty microbiology technologists earning $65K–$85K. Before enrolling, ask the program whether it has a NAACLS-accredited clinical-rotation track or formal articulation with a CLS/MLS certificate program — without it, the path to certification adds 12–24 months and additional tuition.
Is this major a viable pre-medical (or pre-PA, pre-DDS) track?
Yes, and a significant share of medical microbiology majors are pre-medical-by-other-name. The required and elective coursework — general and organic chemistry, biochemistry, immunology, microbial physiology, virology, parasitology, mycology — overlaps heavily with med-school prerequisites, and the laboratory-research opportunities within microbiology departments map cleanly to the research-experience expectations of competitive MD, DO, PA, and DDS applications. Honest read on med-school admissions: a Medical Microbiology bachelor's offers no direct admissions advantage over Biology General, Biochemistry, or Biomedical Sciences — admissions committees evaluate GPA, MCAT/DAT/GRE/PA-CAT scores, clinical hours, research, and letters, not the specific CIP code. The major can be a slight signal of infectious-disease interest (which can help in interviews), but it carries the disadvantage of fewer elective slots if med-school prerequisites aren't already embedded in the core curriculum. Confirm before enrolling that physics (one full year with lab), additional organic chemistry, biochemistry, English composition, and statistics are either required or accommodated — gaps mean post-bac coursework before applying.
What industries actually hire Medical Microbiology bachelor's graduates?
Six sectors absorb most graduates with stratified entry-wage ranges. Hospital and reference clinical labs (Quest, LabCorp, Mayo Clinic Labs, ARUP, hospital systems' microbiology benches covering bacteriology, mycology, parasitology, virology, and mycobacteriology) hire for clinical microbiology technologist roles — wages $50K–$70K pre-certification, $65K–$85K post-ASCP certification. Pharmaceutical and vaccine R&D (Pfizer, Merck, Moderna, BioNTech, Sanofi, GSK, Johnson & Johnson, Novavax) and anti-infective biotechs (Spero, Paratek, Melinta) hire research associates at $58K–$72K starting, with growth tied to internal promotion or returning for a graduate degree. Public-health laboratories at the federal level (CDC, FDA, USAMRIID), national-lab contractors (Battelle, JHUAPL, Lovelace), and state public-health labs hire microbiologists and surveillance technicians at GS-7 to GS-9 federal pay or $50K–$70K state — these are pipelines into the MD/PhD or MS/MPH-credentialed senior tier. Food safety, dairy, and fermentation QA (Cargill, Tyson, Anheuser-Busch, Boston Beer, regional dairy and meat processors) hires for microbiology QA and HACCP roles at $48K–$65K. Industrial and synthetic biology (Ginkgo Bioworks, Twist Bioscience, contract bioprocess manufacturers) hires for fermentation and bioprocess technician roles at $50K–$68K. Academic research labs at university medical centers hire research-assistant bridges to graduate school at $40K–$52K. Geographic concentration matters: pharma/vaccine roles cluster in Boston, San Francisco Bay Area, San Diego, Research Triangle, and Puerto Rico; clinical-lab roles distribute nationally with hospital systems.
How does Medical Microbiology compare to Microbiology General or Biomedical Sciences?
The CIP code matters less than coursework alignment, but the distinctions are real. Microbiology General (CIP 26.0501, ~2,120 annual completions, nearly five times larger than this major) is a broader umbrella covering microbial ecology, environmental microbiology, microbial genetics, food microbiology, industrial fermentation, and immunology — it preserves more career optionality including environmental and industrial paths. Medical Microbiology and Bacteriology (CIP 26.0503) is the narrower, human-pathogen-focused subset, with deeper coursework in bacterial pathogenesis, infectious-disease mechanisms, virology, and clinical microbiology — it is a sharper signal for clinical-lab and infectious-disease research targets but reduces flexibility outside human-disease contexts. Sibling specialty CIPs are even narrower: 26.0508 Mycology and 26.0509 Virology each focus on single pathogen classes and award very few degrees. Biomedical Sciences General (CIP 26.0102, 6,553 completions) is a broader pre-clinical major spanning anatomy, physiology, biochemistry, and pharmacology — it serves better as a pre-MD/DO/PA generalist platform but provides less microbiology-specific laboratory training. Cell/Cellular and Molecular Biology (CIP 26.0406) offers the strongest preparation for molecular-mechanism research at the bench. The career destinations substantially overlap; the difference is in undergraduate laboratory technique depth and research-area signal for graduate-school applications.
Which schools dominate the program, and what does the Florida concentration signal?
The top-ten is unusually concentrated. The University of Florida (215 bachelor's completions) plus the University of Florida-Online (26) account for roughly 54 percent of all annual US bachelor's degrees in this CIP — a remarkable single-program concentration driven by UF's large College of Liberal Arts and Sciences microbiology pipeline and its strong feeder relationship with UF's Health Science Center, College of Medicine, and PA program. Montana State University-Bozeman (65) is the second-largest producer, reflecting its strong infectious-disease research history including the Center for Biofilm Engineering. Mississippi State (34), Auburn (27), University of Minnesota-Twin Cities (26), New Mexico State (19), University of South Florida (11), University of Central Florida (8), and Penn State (7) round out the top ten. The Florida concentration signals two things for prospective students: first, UF's program has substantial scale advantages in research-lab availability, internship pipelines, and graduate-school feeder relationships; second, the small absolute number of programs nationally (just 14 colleges award this CIP) means that students applying from outside top-producing states should evaluate whether a closer Microbiology General program (CIP 26.0501) at a regional public university might offer comparable preparation with better access. The narrow program landscape is itself a signal that this CIP is most often chosen by students who have specific medical-microbiology career targets and access to a research-active program — for general microbiology interest, the broader CIP 26.0501 has 99 colleges and 2,120 annual completions.
How is AI and laboratory automation changing this field?
The wage-trajectory split is real and growing. Routine wet-lab clinical microbiology — bench identification of bacteria from culture plates, basic susceptibility testing, manual specimen processing — is compressing as automation accelerates. BD Kiestra, Copan WASP, and BD Phoenix automated identification and susceptibility platforms are now standard in larger hospital and reference labs, and they reduce the headcount required for routine bench work even as overall test volume grows. The wage-growth lane is the bioinformatics and computational-microbiology side: MALDI-TOF mass spectrometry coupled with AI-driven organism identification, AlphaFold-class protein-structure prediction for antimicrobial-target discovery, whole-genome-sequencing-based outbreak surveillance, and metagenomic-sequencing pipelines for unknown-pathogen identification. Medical microbiology graduates who add Python, R, Bash scripting, basic Linux command-line fluency, and exposure to bioinformatics tools (BLAST, Snakemake, Nextflow, common variant-calling pipelines) materially expand their career options into pharma R&D, public-health surveillance, and computational biology roles — and these skills do not require a graduate degree to develop. Graduates who plan a wet-lab-only career should expect slow wage growth and gradual job-volume compression; graduates who pivot to bioinformatics-adjacent work see notably better wage trajectories with or without graduate school.