Coronaviruses are a group of related viruses that causes diseases in mammals and birds. In humans, coronaviruses causerespiratory tract infections that can be mild, such as some cases of the common cold (among other possible causes, predominantly rhinoviruses), and others that can lethal, such as SARS, MERS and COVID-19. Symptoms in other species vary: in chickens, they cause an upper respiratory tract disease, while in cows and pigs they cause diarrhea. There are yet to be vaccines or antiviral drugs to prevent or treat human coronavirus infections.
Coronaviruses constitute the subfamily Orthocoronavirinae. They are enveloped viruses with a positive-sense single-stranded RNA genome and a nucleocapsid of helical symmetry. The name coronavirus is derived from the Latin corona meaning crown or halo, which refers to the characteristic appearance reminiscent of a crown or a solar corona around the virions when viewedunder two-dimensional transmission electron microscopy, due to the surface covering in club-shaped protein spikes.
Difference between epidemic and pandemic
An epidemic is an outbreak of a disease that spreads quickly and affects many individuals at the same time. An outbreak occurs when there is a sudden increase in the number of cases of a disease. It generally describes an increase that was not anticipated. An outbreak can occur in a community, geographical area or several countries. Epidemic is often usedbroadly time describe any problem that has grown out of control. During an epidemic, the disease is actively spreading.
A pandemic is a type of epidemic that relates to geographic spread and describes a disease that affects an entire country or the whole world. Declaring a pandemic allows national and global public health agencies to respond to the situation at a higher degree.
COVID-19 as a pandemic
COVID-19 is declared a pandemic because of the speed at which it has spread globally. The World Health Organizationdeclares it to be a controllable pandemic and continues to provide advice on precautionary practices and ways to stop the spread of the disease.
How is COVID-19 diagnosed?
Diagnosis may be difficult with only a physical exam because mild cases of COVID-19 may appear similar to the flu or a bad cold. A laboratory test can confirm the diagnosis.
How is COVID-19 treated?
As of now there is no specific treatment for the virus. People who become sick from it should be treated with supportive measures: those that relieve symptoms. For severe cases, there may be additional options for treatment, including research drugs and therapeutics.
What are the symptoms of COVID-19?
COVID-19 symptoms include cough, fever, shortness of breath, fatigue and respiratory issues etc…
What is the incubation period for COVID-19?
It appears that symptoms are showing up in people within fourteen days of exposure to the virus.
How is COVID-19 spread?
Recent information indicates it may be passed from person to person. Community spread is being seen, also. Community spread means people have been infected with the virus in a particular area, including some people who are not sure how or where they become infected.
Origin of coronavirus
COVID-19 appeared in Wuhan, a city in China, in December 2019. Although health officials are still tracing the exact source of this new corona virus, early hypothesis thought it may be linked to a seafood market in Wuhan, China. Some people who visited the market developed viral pneumonia caused by the new corona virus. A study came out on Jan 25,2020 states that the individual with the first reported case became ill on December 1,2019 and had no link to the seafood market. Investigations are ongoing as tto how this virus originated and spread.
Precautions against Corona virus
We should wash our hands frequently and thoroughly for at least twenty seconds. Use alcohol-based hand sanitizer if soap and water aren’t available. Also we should cover coughs and sneezes with a tissue. Avoid touching eyes, nose or mouth with unwashed hands. Stay home when you are sick. Clean and disinfect surfaces and objects people frequently touch.
Effect of Corona virus on the world
Corona virus has recently affected the world in an unexpected manner. A large number of people have already died and many more have been infected. It has badly affected the life of people in different countries all over the world especially across Europe. Rather than affecting the health of the people corona virus also have a great impact on the world economy. Markets have fallen leaving many people unemployed. Outputs have been decreased. Falling oil and stock prices is also a great crisis.
Corona virus: Indian scenario (especially Delhi) and the various govt. measures
Over 6000 people have died globally since the outbreak of the novel coronavirus. More than 162000 have been infected. What started in China, soon spread across France, the US, Spain, Italy, South Korea and now India. India so far, has officially reported more than 110 cases and three deaths, according to the Ministry of Health. More cases are emerging every day even as states continue issuing advisories on social distancing. Delhi is one of the prone areas due to the large population in such a small area.
The government has put stringent measures to curb the spread of the virus. Schools, colleges, theatres, offices, gyms etc.. have been closed in many states especially Kerala and Delhi. Thermal screenings are being held at airports and railway and bus stations. People coming from other places are being kept for self isolation in their houses. Isolation camps are being opened in various places. Awareness is being spread through various advertising methods. Shops are closed and various campaigns are held to make people more aware. Public meetings, weddings, religious programs etc.. are also being suspended.
Corona virus and Indian culture and tradition
Indian culture and tradition have already taught us what we need to avoid catching deadly corona virus. We should follow our Indian values of washing our hands before everything, before eating a meal, before doing anything. We should stop shaking hands and use the Indian food of greeting namasthe, as it cuts down the chances of virus transmission. Also various traditions Indian medicines like turmeric, neem, honey etc.. can keep us immune against corona virus.
Corona virus has already affected the complete world. It also keeps spreading at an alarming rate. So it necessary for us to keep calm and united to fight against this pandemic. We should take all the precautions to fight it. We should follow government instructions. Eat well and stay healthy. Let’s join our hands together in the global fight against this great epidemic that the world is currently facing.