Coronavirus Archives | Microbe Notes

Transmission, pathogenesis, replication of SARS-CoV-2 (COVID-19)

May 23, 2020April 7, 2020 by Anupama Sapkota

Modes of transmission of SARS-CoV-2 (COVID-19) There are three modes of transmission of SARS-CoV-2 which include: Droplets transmission Contact transmission Aerosol transmission Figure: Modes of transmission of SARS-CoV-2. Image Source: NCBI Book Droplets transmission occurs when respiratory droplets (as produced when an infected person coughs or sneezes) are ingested or inhaled by individuals in close proximity. Contact transmission occurs when …

Coronavirus- An Overview

October 20, 2020November 9, 2019 by Sagar Aryal

Structure of Coronavirus Coronaviruses fall in the virus family Coronaviridae, order Nidovirales. Coronaviruses are enveloped, 120 to 160 nm particles that contain an unsegmented genome of single-stranded positive-sense RNA (27–32 kb). The large, plus-stranded RNA genome associates with the N protein to form a helical nucleocapsid. The helical nucleocapsid is 9–11 nm in diameter. There are 20 nm long club or …