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UNIT 4 MICROBIOLOGY   

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Bacteria culturing in the lab

Bacteria counting 

Wheat Field

Cell counting methods 

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Thusitha Sir | Counting bacteria 

VIRUS

Covid 19
STRUCTRE

LIFE CYCLE OF A VIRUS

INFECTIOUS DISEASES 

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AIDS

EBOLA

TMV

TUBERCULOSIS AND HIV

DR THUSITHA GAJANAYAKE

Vaccine
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