**4.17 Loop-mediated isothermal amplification assay (LAMP assay)**

The assay is a sensitive and rapid technique used for amplification of DNA and thereby pathogen detection in an hour by using the DNA polymerase by autocycling strand displacement action by boiling at persistent temperature (60–65°C) in water bath. Usually, 2 sets of primers bind to 4 to 6 different regions of target viral DNA. LAMP has field application as there is no need for any thermocycler to carry out the target gene amplification. The amplification of VP2 gene of CPV-2 by LAMP assay has been developed. LAMP assay along with lateral flow dipstick (LFD) and LAMP-ELISA are also used for CPV DNA detection [69].
