EVERYDAY SCIENCE

Detailed explanation-1: -Abstract. Coronaviruses are large, enveloped RNA viruses of both medical and veterinary importance. Interest in this viral family has intensified in the past few years as a result of the identification of a newly emerged coronavirus as the causative agent of severe acute respiratory syndrome (SARS).

Detailed explanation-2: -Coronaviruses (CoVs) are positive-stranded RNA(+ssRNA) viruses with a crown-like appearance under an electron microscope (coronam is the Latin term for crown) due to the presence of spike glycoproteins on the envelope.

Detailed explanation-3: -Abstract. Coronaviruses (CoVs), enveloped positive-sense RNA viruses, are characterized by club-like spikes that project from their surface, an unusually large RNA genome, and a unique replication strategy.

Detailed explanation-4: -At their core, coronaviruses contain a genetic blueprint called RNA (beige), similar to DNA. The single-stranded RNA acts as a molecular message that enables production of proteins needed for other elements of the virus.

Detailed explanation-5: -Human diseases causing RNA viruses include Orthomyxoviruses, Hepatitis C Virus (HCV), Ebola disease, SARS, influenza, polio measles and retrovirus including adult Human T-cell lymphotropic virus type 1 (HTLV-1) and human immunodeficiency virus (HIV).