Full formMedical & Health
PFUstands forPlaque Forming Unit
Full Form of PFU
What is PFU?
A Plaque Forming Unit (PFU) is a quantitative measure used in virology to estimate the number of infectious virus particles in a given sample. It is determined by adding a diluted viral suspension to a monolayer of host cells, allowing the viruses to infect and replicate, which creates localized areas of cell death known as plaques. Each plaque represents one infectious unit, and the PFU per milliliter is calculated by counting these plaques. In India, PFU is commonly used in research laboratories, vaccine production facilities, and diagnostic centers to assess viral load, potency of vaccines (e.g., polio and measles vaccines), and to standardize experiments in virology. The term is widely taught in Indian universities under microbiology and biotechnology curricula, and often appears in competitive exams such as NEET PG, CSIR NET Life Sciences, and GATE Biotechnology. Understanding PFU is essential for students and professionals working with viruses, as it provides a reliable method to compare infectivity across different conditions and treatments. Its application extends to clinical virology, where accurate quantification aids in disease monitoring and antiviral drug evaluation.
PFU का फुल फॉर्म
प्लाक निर्माण इकाई
Example
The researcher reported that the viral stock had a titer of 2.5 × 10^6 PFU per milliliter after the plaque assay.
PFU — frequently asked questions
What is the full form of PFU?
The full form of PFU is Plaque Forming Unit. It is a standard unit used in virology to measure the number of infectious virus particles in a sample.
How is PFU calculated in a lab?
PFU is calculated by serially diluting a viral sample and inoculating it onto a monolayer of host cells. After incubation, the number of plaques (clear zones of cell death) is counted, and the titer is expressed as PFU per milliliter.
Why is PFU important for Indian students?
PFU is important for Indian students because it is a core concept in virology and microbiology, frequently tested in competitive exams like NEET PG, CSIR NET, and GATE Biotechnology, and is used in vaccine development and diagnostic labs across India.