Coronaviruses are a group of related RNA viruses that cause diseases in mammals and birds. In humans and birds, they cause respiratory tract infections that can range from mild to lethal. Mild illnesses in humans include some cases of the common cold, while more lethal varieties can cause SARS, MERS and COVID-19, which is causing an ongoing pandemic. In cows and pigs they cause diarrhea, while in mice they cause hepatitis and encephalomyelitis. Coronaviruses constitute the subfamily Orthocoronavirinae, in the family Coronaviridae, order Nidovirales and realm Riboviria. They are enveloped viruses with a positive-sense single-stranded RNA genome and a nucleocapsid of helical symmetry. The genome size of coronaviruses ranges from approximately 26 to 32 kilobases, one of the largest among RNA viruses. They have characteristic club-shaped spikes that project from their surface, which in electron micrographs create an image reminiscent of the solar corona, from which their name derives.

Read more in the app

Our Immune System Is No Match – Coronavirus Protein Caught Severing Critical Immunity Pathway

Christopher Barnes is on a quest for a universal coronavirus vaccine

Coronavirus vaccines could cut the risk of long covid by two-fifths

The coronavirus infects fat cells, study shows

Smart face mask could detect coronavirus on other people’s breath

The omicron coronavirus variant may protect against flu

Scientific Breakthrough Against COVID-19: Antibodies Identified That May Make Coronavirus Vaccines Unnecessary

Researchers identify antibodies that may make coronavirus vaccines unnecessary

Measuring wastewater coronavirus accurately

The shape of coronavirus affects its transmission, finds study

The curious case of the 471-day coronavirus infection

New generation of coronavirus vaccine shows promising results

Natural substances show promise against coronavirus

New target structure against coronavirus

Newly Discovered Monkey Antibodies Could Hold Key To Vaccine Against All Coronavirus Strains

Promising developments in pursuit to design pan-coronavirus vaccine

Why efforts to make better, more universal coronavirus vaccines are struggling

New Face Mask Material Can Capture And Deactivate Coronavirus Particles

Coronavirus spike protein activated natural immune response, damaged heart muscle cells, study finds

Demonstration of a potent, universal coronavirus monoclonal antibody therapy for all COVID-19 variants