Covid-19 update

Hi, today I am going to tell you about the history of Corona virus.

Corona virus was first characterized in the 1960s, this was responsible for a substantial proportion of upper respiratory tract infections in children.

Since 2003, at least 5 new human Corona viruses have been identified, including the severe acute respiratory syndrome Corona virus, which caused significant morbidity ( Mean that your ill-health is immediately life- threatening). NL63, representing a group of newly identified group I Corona viruses that includes NL and the New Haven Corona virus, has been identified worldwide. These viruses are associated to both upper and lower respiratory disease. The global distribution of a newly identified group II Corona virus, HKU1, has not yet been established. Corona virology has advanced significantly in the past few years. The SARS epidemic put the animal Corona viruses in the spotlight.


The history of human Corona viruses began in 1965 when Tyrrell and Bynoe1 found that they could passage a virus named B814. It was found from obtained from the respiratory of an adult with a common cold. At about the same time, Hamre and Procknow2 were able to grow a virus with unusual properties in tissue culture from samples obtained from medical students with colds. Both B814 and Hamre’s virus, which she called 229E.

From then there are 7 types of corona virus.

All seven types of human Corona viruses cause upper respiratory infections. Symptoms resemble those of the common cold or flu and may include:

  • nasal congestion
  • sore throat
  • cough
  • headaches
  • fever

There are four common human coronaviruses:

1: 229E

2: NL63

3: OC43

4; HKU1


It was originated in bats and it was transmitted to other animals before infecting humans. Due to this, during the 2002-2003 epidemic, more than 8,000 people in 26 countries around the world contracted SARS. There were 744 reported deaths.


According to WHOTrusted Source, it emerged in September 2012 in Saudi Arabia, although initial cases were later traced back to Jordan.

Humans contract MERS-CoV through contact with camels that have contracted the infection. The virus is also transmitted by coming into very close contact with a person who has the infection.

There were more than 2,400 MERS reported cases. To date, the majority of cases have occurred in Saudi Arabia.

In 2015, an outbreak in South Korea which led to 186 cases and 36 deaths.

7: SARS-CoV-2

SARS-CoV-2 causes COVID-19. This new Corona virus that appeared in Wuhan, China, in late December 2019 after health officials noticed an increase in pneumonia cases with known cause.

These cases have since been linked to a market selling seafood and poultry, Though the virus has evolved after coming in the contact of animals.

Within a few months, SARS-CoV-2 has spread to hundreds of countries around the world after being transmitted through person-to-person contact.

Symptoms of COVID-19

The primary symptoms of COVID-19 include:

More symptoms of COVID-19 include:

  • sore throat
  • nasal congestion
  • muscle aches and pains
  • diarrhea
  • loss of taste or smell
  • headache
  • chills, which may sometimes occur alongside repeated shaking

COVID-19 might feel different than symptoms of a cold, the flu, or allergies. In addition, not everyone with a SARS-CoV infection has symptoms.

These are some top country suffering from covid-19.

Country Cases Deaths Region
United States 1,620,902 96,354 North America
Russia 317,554 3,099 Europe
Brazil 310,921 20,082 South America
Spain 280,117 27,940 Europe
United Kingdom 250,908 36,042 Europe
Italy 228,006 32,486 Europe
France 181,826 28,215 Europe
Germany 179,021 8,309 Europe
Turkey 153,548 4,249 Asia
Iran 129,341 7,249 Asia
India 118,501 3,585 Asia
Peru 108,769 3,148 South America
China 82,971 4,634 Asia
Canada 81,324 6,152 North America
Saudi Arabia 65,077 351 Asia
Mexico 59,567 6,510 North America
Chile 57,581 589 South America
Belgium 56,235 9,186 Europe
Pakistan 48,091 1,017 Asia
Netherlands 44,700 5,775 Europe

Graphical repersentations of some country

Thanks hop you like.


A review on Bat Coronavirus