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What is the corona virus?

Coronavirus is a type of virus. There are many different kinds of disease. A newly identified type has caused the recent outbreak of ventilator illness now called COVID-19. An outbreak of the corona virus in china is causing global concern. It came from a seafood and meat market in Wuhan, china in December 2019. It has since spread in other countries too. The world health organization (WHO) has declared this rapidly spreading corona virus outbreak a pandemic, and many countries are grappling with a rise in confirmed cases.

COVID-19 1

Most people infected with COVID-19 virus will experience mild to moderate respiratory illness and recover without requiring special treatment. Older people and those with underlying medical problems like cardiovascular disease, diabetes, chronic respiratory disease, and cancer are more likely to develop serious illness. The COVID-19 virus spreads primarily through droplets of saliva and discharge from the nose when an infected person coughs and sneezes, so it’s important that you also practice respiratory etiquette. The best way to prevent and slow down transmission is be well informed about COVID-19 virus, the disease it causes and how it spread. Protect yourself and others from infection by washing your hands or using an alcohol-based rub frequently and no touching your face.

Why has the virus spread so fast?

Covid-19 is primarily transmitted by respiratory droplets. When infected people breathe, cough, or sneeze, they expel little droplets of moisture that contain the virus. Another person in their neighborhoods could breathe in these particles and get infected. The virus droplets can also land on surfaces that others may touch and then get infected by touching their mouth, nose, or eyes. Scientist believe that the virus can remain viable on a hard, non-porous surface that plastics or steel for around three days, and rough surface like cardboard for about a day. The 6 feet away social distancing guidelines is meant to keep people out of the splash zone for these respiratory droplets. But know there is no hard cutoff for how far the viral droplets can spread. A sneeze can propel material from the nose 20 feet or more.

COVID-19 2

Person-to-person spread

The virus is thought to spread mainly from person-to-person.

  • Between people who are in close contact with one another (within about 6 feet).
  • Through respiratory droplets produced when an infected person coughs, sneezes or talks.
  • These droplets can land in the mouths or noses of people who are nearby or possibly be inhaled into the lungs.
  • Some recent studies have suggested that COVID-19 may be spread by people who are not showing symptoms.
  • Maintaining good social distance (about 6 feet) is very important in preventing the spread of COVID-19.

Spread from contact with contaminated surfaces or objects

  • It may be possible that a person can get COVID-19 by touching a surface or object that has the virus on it and then touching their own mouth, nose, or possibly their eyes. This is not thought to be the main way the virus spreads, but we are still learning more about this virus.

How easily the virus spreads

  • How easily a virus spreads from person-to-person can vary. Some viruses are highly contagious, like measles, while other viruses do not spread as easily. Another factor is whether the spread is sustained, which means it goes from person-to-person without stopping.
  • The virus that causes COVID-19 is spreading very easily and sustainable between people.
  • Information from the ongoing COVID-19 pandemic suggest that this virus is spreading more efficiently than influenza, but not as efficiently as measles, which is highly contagious.
  • COVID-19 is thought to spread mainly through close contact from person-to-person in respiratory droplets from someone who is infected. People who are infected often have symptoms of illness. Some people without symptoms may be able to spread virus.

COVID-19 3

Another big reason Covid-19 has spread so far and wide is that people with mild symptoms and even people without symptoms can spread it. Fever, cough and shortness of breath are recognized as common symptoms, but others such as loss of smell and taste have been reported as well, and symptoms may take up to 14 days to come out. There is no firm evaluation on this, but it seems that somewhere between 25 and 50 % of people infected with the virus show no symptoms. Some percentage of those asymptomatic cases can spread the virus to others.

On March 13, the journal Science published an analysis that concluded 86 percent of all the COVID-19 cases in China before January 23 were not detected by public health authorities at the time though that doesn’t mean these cases were asymptomatic.  It’s estimated that these un-diagnosed cases infected 79 percent of the total cases. The results suggest that, at least, the bulk of transmission of the virus in China was spread by people not sick enough to get the attention of doctors.

The fact that this virus can spread sneakily and silently makes it extra dangerous. It’s also possible to spread it before a person develops symptoms.

Covid-19 needed more than three months to infect 100,000 people worldwide, most of them in China. But the number of cases has surged since hitting that milestone earlier this month, with health agencies reporting another 100,000 people becoming infected in just 12 days, the World Health Organization said Friday. the virus’s spread has changed markedly this month, according to the WHO’s most recent data. And experts expect the number of infections to continue to rise as the U.S. and other countries improve their ability to test for the coronavirus.

Most of the corona virus cases in India originated abroad rather than being transmitted within the country. The analysis of the updates issued by the ministry of health and family welfare shows a majority of these infected since the infection was first detected in India on 30 January has travel history to countries such as Italy, china, and Iran.

The first 50 cases found positive for the covid-19 virus in India, until 10 march, did not have travel history, but came in contact with someone who had travelled abroad. Only one patient so far has been found not to have come in contact with anyone who had travelled abroad.

A lot of the evidence points toward the outbreak either starting or significantly gaining steam at a live animal market in Wuhan, China. The more we know about how this virus jumped from animals to humans, the more authorities can help make sure an outbreak with this origin doesn’t spiral out of control and spread around the world again. Covid-19 is not just a flu, it is worst.

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