System-Wise Microbiology Made Easy – MBBS Proff Exam Revision Guide
Hi! This is my first blog post where I’m sharing concise, system-wise Microbiology notes based on Dr. Preeti’s and Apurba Shastry’s materials. Whether you're preparing for MBBS exams or NEET PG, these notes are structured to help you revise quickly and effectively. Let’s dive in!
- Introduction
- Topics Covered
- How to Use These Notes
- What's Included
- Why System-Wise is Better
- PDF Access
How I Studied Microbiology for MBBS Profs (Using Apurba Sastry + My Own Notes)
Introduction:
Microbiology is one of the toughest subjects in MBBS — not because it's hard to understand, but because there's just too much information. Names of organisms, their classifications, toxins, lab tests, exceptions — it becomes overwhelming really fast.
Like many MBBS students, I studied Micro from Dr. Preeti’s lectures, which are excellent — but they’re designed for PG preparation and follow a bacteria-, virus-, parasite-wise format. That’s great for concepts, but not ideal when our profs exams ask system-wise questions — like infections in blood, GIT, CNS, etc.
That’s when I realized I needed to restructure my revision. So I took Apurba Sastry as my base and created system-wise notes tailored for the professional exams. In this blog, I’ll walk you through exactly how I:
▪︎Shifted from species-wise to system-wise preparation
▪︎Used Apurba Sastry to make my own notes
▪︎Focused only on what really matters for profs
▪︎Made Microbiology easier, cleaner, and revision-friendly
If you’re stuck with too many lectures, notes all over the place, or just not sure how to start revising — this is for you.
I'll be including the notes i created for my revision at the end.
-For example:
The writing isn't upload worthy but let's just focus on the content(Quality Reduced due to Screenshot)
System-wise Microbiology notes for MBBS Proffs:
These notes are compiled from both Dr. Preeti’s lectures (popular for PG prep) and the standard textbook by Apurba Sastry, which is widely followed for university exams. While coaching classes often teach species-wise (like Bacteriology, Virology, Parasitology), university exams are usually structured system-wise — asking about infections in the CNS, GIT, Blood, etc.
> If you’re someone who studied from lectures like I did, you’ve probably felt the same confusion: you understand the organism, but when asked about “Dysentery” or “CSF findings in Meningitis,” you’re not sure what exactly to write.
That’s why I reorganized everything system-wise, focusing only on the high-yield and commonly asked exam topics from Microbiology that actually show up in professional exams.
You don’t need to master everything. The goal is to pass Proffs with confidence and leave the deep-dive prep for NEET PG or INI-CET. Feel free to add more topics based on your own college’s past year questions if needed.
📚 Topics Covered in the Notes:
These notes are organized system-wise based on commonly asked university exam questions. You can use them as a base and add a few extra topics based on your college’s previous year questions.
1. 🩺 Skin & Soft Tissue Infections:
▪︎Anthrax
▪︎Cutaneous Leishmaniasis
▪︎Dermatophytoses
▪︎Mycetoma
▪︎Gas Gangrene
2. 🫁 Respiratory Tract Infections (RTI):
▪︎Pneumonia
▪︎Non-TB Mycobacteria
▪︎Influenza
▪︎Pertussis
▪︎Aspergillosis
▪︎Pharyngitis
▪︎Tuberculosis
3. 🧠 Central Nervous System (CNS) Infections:
▪︎Tetanus
▪︎Rabies
▪︎Poliomyelitis
▪︎Japanese Encephalitis
▪︎Cryptococcus
▪︎Meningitis
4. 🧬 Genitourinary Tract Infections (GUTI):
▪︎Syphilis
▪︎Neisseria Gonorrhoeae
▪︎Schistosomiasis
▪︎Urethritis
▪︎TORCH Infections
▪︎HIV/AIDS
5. ❤️ Cardiovascular Infections:
▪︎HACEK Group
▪︎Acute Rheumatic Fever
▪︎Fever of Unknown Origin (FUO)
▪︎Spirochetes
▪︎Dengue
▪︎Malaria
▪︎Leishmaniasis
▪︎Filariasis
▪︎Candidiasis
▪︎Infective Endocarditis
6. 🍽️ Gastrointestinal (GIT) Infections:
▪︎Shigella
▪︎Helicobacter pylori
▪︎Amoebiasis
▪︎Giardiasis
▪︎Salmonella typhi (Typhoid)
▪︎Cholera
▪︎E. coli
▪︎Food Poisoning
Hepatitis (A to E)
🧠 How to Use These Microbiology Notes Effectively
Studying microbiology during MBBS can be overwhelming — but with the right strategy, you don’t need to memorize everything. These notes are compiled from Dr. Preeti (Marrow) and Apurba Sastry, and they’re designed to help you focus on what actually matters for your university Proff exams, not for PG entrance.
✅ Covers Everything You Actually Need
These notes include all the important points from every topic — diagnosis, clinical features, causative organisms, special media, vaccines, and more.
You don’t need to have watched Dr. Preeti’s lectures to understand them. Whether you're starting fresh or revising, they’re self-explanatory and exam-oriented.
⏳ How Much Time You’ll Need?
🆕 If you're starting from zero:
Dedicate 3 days to read through all the topics and 3 days to revise. That's enough to comfortably write your exam and feel confident.
✅ If you've already studied from the book or lectures before:
Just 3 days of focused revision using these notes will be more than enough.
💡 How to Use these Notes effectively:
1. Revise System-Wise, Not Organism-Wise
Most of us study chapter-wise (bacteria, virus, etc.), but exams are system-based — like GIT infections, CNS infections, etc.
These notes are already structured that way to help you revise accordingly.
2. Focus on Common & Repeated Organisms
You don’t need to know every rare bug. Just master the high-yield organisms that appear in almost every exam:
Example-
▪︎Salmonella typhi
▪︎E. coli
▪︎HIV, HBV, HCV
▪︎Tuberculosis
▪︎Clostridium, Neisseria, etc.
3. Don’t Aim to Top – Aim to Pass Smartly
Your goal should be to score well without burning out. Micro isn’t about perfection — it’s about writing enough to cross 60–70% and move on to bigger goals like PG.
4. Create a Rapid Revision List
While revising, note down:
▪︎Most common causative agents
▪︎Special diagnostic methods or culture media
▪︎Vaccine-preventable diseases
▪︎Unique virulence factors
These help with short notes, viva, and last-minute revision.
💡Bonus Tip:
If you have the time, try to make your own notes based on these while studying. We tend to remember things better when we write them ourselves rather than just reading someone else’s notes. Even simple bullet points, flowcharts, or underlined keywords in your own handwriting can reinforce your memory. It turns passive reading into active learning — and helps a lot during last-minute revision.
🧠 Why System-Wise Is Better Than Species-Wise for Exams:
Most medical colleges (including yours) ask questions based on clinical systems — not on microbiological classification. So while your lectures may have been taught species-wise (like bacteria, viruses, fungi, parasites), your university exams and even PG entrance questions are framed like this:
> “A 25-year-old male presents with fever and productive cough. Identify the causative organism.”
-That’s respiratory system, not "talk about Klebsiella".
🚀 System-wise prep helps because:
▪︎You connect bugs with symptoms, organs, and diseases.
▪︎You learn to differentiate between similar presentations (like bacterial vs viral meningitis).
▪︎It mirrors how clinical cases appear in exams and real-life.
▪︎It improves your ability to recall quickly in viva or MCQs.
This is why these notes are arranged system-wise — to help you study like a future doctor, not just a microbiology student.
🌐Download Microbiology System-Wise Notes Pdf:
These concise, system-wise microbiology notes are compiled from Apurba Sastry and Dr. Preeti’s lectures,along with use of chatgpt ofcourse. They’re tailored specifically for MBBS professional exams — covering only the most important organisms, clinical features, diagnostic points, and differentiators.
Whether you’re starting fresh or revising, these notes are self-explanatory and exam-oriented. You don’t need to have watched the lectures to understand them — just read, revise, and retain.
📥 Click here to download the pdf
Made for MBBS students, by an MBBS student.
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