Category: Infectious disease, Viruses      Comments: 0

Coronaviruses

Coronaviruses (original article in Russian language – Коронавирус) (the term comes from the Latin Coronaviridae) are a family that includes, as of January 2020, 40 species of RNA — containing viruses, United in two subfamilies that affect humans and animals. The name is associated with the structure of the virus, whose spiny appendages resemble a crown.

3D model of the coronavirus Alphacoronavirus 1

Coronavirus Alphacoronavirus 1

The coronaviruses include:

  • The SARS-CoV virus is the causative agent of SARS pneumonia, the first case of which was registered in 2002;
  • MERS-CoV virus is the causative agent of the middle East respiratory syndrome, an outbreak of which occurred in 2015;
  • The 2019-nCoV virus is responsible for a new type of pneumonia outbreak in 2019-2020.

Human coronavirus was first isolated in 1965 from SARS patients. Sources of coronavirus infections can be a sick person or animals. Possible transmission mechanisms: air-drop, air-dust, fecal-oral, contact. The incidence increases in winter and early spring.

In humans, coronaviruses cause acute respiratory diseases, atypical pneumonia, and gastroenteritis. Children[ru] may have bronchitis and pneumonia. Betacoronavirus viruses are particularly dangerous
for humans.

On January 29, 2020, China transferred the coronavirus genome to Russia[ru] for drug development.

On January 31, 2020, Russian Prime Minister Mikhail Mishustin[ru] appointed Deputy Prime Minister Tatyana Golikova as the head of the operational headquarters for the prevention and spread of a new type of coronavirus in the Russian Federation.

What is important to know about coronavirus

The virus is transmitted:

  • Airborne droplets for sneezing and gcoughin;
  • By contact.

How to prevent coronavirus infection:

  • Do not travel to the center of the disease (China, Wuhan city – as of January 2020);
  • Avoid attending mass events;
  • Wash your hands more often;
  • To use a medical mask;
  • Avoid close contact with people who have symptoms of the disease.

The symptoms of coronavirus:

  • Increased fatigue;
  • Feeling of heaviness in the chest;
  • Nasal congestion;
  • Sneezing;
  • Cough;
  • Sore throat;
  • Pain in muscles;
  • Pallor;
  • Rise in temperature, chills.

Complications:

What to do if you suspect a coronavirus:

Consult a doctor[ru].

What not to do if you suspect a coronavirus:

Don’t self-medicate.

Reminder

Click on the image to enlarge (in Russian):

Memo for coronovirus

Taxonomy

The coronavirus family includes 2 subfamilies and about 40 species:

  • Coronaviridae
  •  Letovirinae
  •   Alphaletovirus
  •    Milecovirus
  •     Microhyla letovirus 1
  •  Orthocoronavirinae
  •   Alphacoronavirus
  •    Colacovirus
  •     Bat coronavirus CDPHE15
  •    Decacovirus
  •     Bat coronavirus HKU10
  •     Rhinolophus ferrumequinum alphacoronavirus HuB-2013
  •    Duvinacovirus
  •     Human coronavirus 229E
  •    Luchacovirus
  •     Lucheng Rn rat coronavirus
  •    Minacovirus
  •     Ferret coronavirus
  •     Mink coronavirus 1
  •    Minunacovirus
  •     Miniopterus bat coronavirus 1
  •     Miniopterus bat coronavirus HKU8
  •    Myotacovirus
  •     Myotis ricketti alphacoronavirus Sax-2011
  •    Nyctacovirus
  •     Nyctalus velutinus alphacoronavirus SC-2013
  •    Pedacovirus
  •     Porcine epidemic diarrhea virus
  •     Scotophilus bat coronavirus 512
  •    Rhinacovirus
  •     Rhinolophus bat coronavirus HKU2
  •    Setracovirus
  •     Human coronavirus NL63
  •     NL63-related bat coronavirus strain BtKYNL63-9b
  •    Tegacovirus
  •     Alphacoronavirus 1
  •    Betacoronavirus
  •     Embecovirus
  •      Betacoronavirus 1
  •       Human coronavirus OC43
  •      China Rattus coronavirus HKU24
  •      Human coronavirus HKU1
  •      Murine coronavirus
  •     Hibecovirus
  •      Bat Hp-betacoronavirus Zhejiang2013
  •     Merbecovirus
  •      Hedgehog coronavirus 1
  •      Middle East respiratory syndrome-related coronavirus (MERS-CoV)
  •      Pipistrellus bat coronavirus HKU5
  •      Tylonycteris bat coronavirus HKU4
  •     Nobecovirus
  •      Rousettus bat coronavirus GCCDC1
  •      Rousettus bat coronavirus HKU9
  •     Sarbecovirus
  •      Severe acute respiratory syndrome-related coronavirus (SARS-CoV)
  •      2019-nCoV
  •     Deltacoronavirus
  •      Andecovirus
  •       Wigeon coronavirus HKU20
  •      Buldecovirus
  •       Bulbul coronavirus HKU11
  •       Coronavirus HKU15
  •       Munia coronavirus HKU13
  •       White-eye[ru] coronavirus HKU16
  •      Herdecovirus
  •       Night heron coronavirus HKU19
  •      Moordecovirus
  •       Common moorhen coronavirus HKU21
  •     Gammacoronavirus
  •      Cegacovirus
  •       Beluga whale coronavirus SW1
  •      Igacovirus
  •       Avian coronavirus

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