Positive staining of Viruses

Positive staining of Viruses

What is positive staining? Positive staining of viruses is similar to negative staining. The difference is that the virus image is darker formed on a light background, unlike the negative … Read more

Nipah Virus (NiV)- An Overview

Structure of Nipah Virus (NiV)

Nipah virus (NiV) is a zoonotic bat-borne pathogen belonging to the paramyxoviruses. It was first identified in Malaysia in 1998. However, no cases have been detected in Malaysia since 1999. … Read more

Norwalk Virus (Norovirus)- An Overview

Structure and Genome of Norwalk Virus

Structure of Norwalk Virus (Norovirus) The virus is non-enveloped, round, 27-nm particles with a ‘ragged’ outer edge but lacking a definite surface structure. It has a buoyant density of 1.33–1.41 g/cm3, … Read more

Mumps Virus- An Overview

Mumps Virus

Structure of Mumps Virus Mumps virions are markedly pleomorphic (100 to 600 nm), and roughly spherical with an outer membrane that envelops an inner, coiled helical structure. The envelope which … Read more