Biology, asked by dhananjayrai, 7 months ago

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Answered by eshuhp
0

Answer:

What is a coronavirus?

The name “coronavirus” comes from the crown-like projections on their surfaces. “Corona” in Latin means “halo” or “crown.” Among humans, coronavirus infections most often occur during the winter months and early spring.

COVID-19

In 2019, the Centers for Disease Control and Prevention (CDC) started monitoring the outbreak of a new coronavirus, SARS-CoV-2, which causes COVID-19. Authorities first identified the virus in Wuhan, China.

Since then, the virus has spread to nearly every country, leading the World Health Organization (WHO) to declare a pandemic.

The new coronavirus has been responsible for millions of infections globally, causing hundreds of thousands of deaths. The United States has seen the highest number of these deaths.

The first people with COVID-19 had links to an animal and seafood market. This suggests that animals initially transmitted the virus to humans. Then, people with no connections to the market developed the disease, confirming that humans can pass the virus to each other.

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Some groups are more at risk of severe disease, including older adults and people with underlying medical concerns, including high blood pressure, heart and lung problems, diabetes, and cancer.

The mortality rate varies between countries. In the U.S., the death rate is around 6%.

According to the CDC, children are not at higher risk of COVID-19 than adults.

Pregnant women appear to have the same risk of COVID-19 as other adults. However, during pregnancy, women have a higher risk of severe illness from viruses that are similar to SARS-CoV-2 and influenza.

No vaccine is currently available for COVID-19. However, scientists have now replicated the virus. This could allow for early detection and treatment in people who have the virus but are not experiencing symptoms.

Taking the following steps may help:

resting and avoiding overexertion

drinking plenty of water

avoiding smoking and smoky areas

taking acetaminophen (Tylenol) to reduce pain and a fever

using a clean humidifier or cool mist vaporizer

A doctor can identify the virus responsible in a sample of fluid from a person’s body, such as a sample of blood or mucus from the nose.

Rarer strains that cause more severe illnesses include MERS-CoV, which causes the disease MERS, and SARS-CoV, the virus responsible for SARS.

In 2019, a new strain, called SARS-CoV-2, started circulating, causing the disease COVID-19.

Transmission

The CDC recommend that all people wear cloth face masks in public places where it is difficult to maintain a 6-foot (2-meter) distance from others. This will help slow the spread of the virus from asymptomatic people and people who do not know that they have contracted it. People should wear cloth face masks while continuing to practice physical distancing. Instructions for making masks at home are available here. Note: It is critical that surgical masks and N95 respirators are reserved for healthcare workers.

Researchers believe that the viruses transmit via fluids in the respiratory system, such as mucus.

For example, a coronavirus can spread when a person:

coughs or sneezes without covering their mouth, dispersing droplets into the air

touches someone who has the infection

touches a surface that has the virus, then touches their own nose, eyes, or mouth

Some animal coronaviruses may spread to humans through contact with feces, though it is unclear whether human coronaviruses can spread in the same way. Coronaviruses will infect most people at some point.

To prevent transmission, people with symptoms should stay at home, rest, and avoid coming into close contact with other people.

Covering the mouth and nose with a tissue or handkerchief while coughing or sneezing can also help prevent transmission. It is important to dispose of used tissues right away and maintain proper hygiene around the home.

SARS - SARS is a contagious disease that develops from infection with the SARS-CoV coronavirus. In many cases, it leads to a life threatening form of pneumonia.

In November 2002, the virus started circulating in the Guangdong province of southern China, eventually reaching Hong Kong. From there, it rapidly spread, causing infections in more than 24 countries.

Experts no longer consider SARS a risk. Since 2003, there have only been a few cases due to laboratory accidents or, possibly, transmission from animals.

SARS-CoV affects both the upper and lower respiratory tract.

The symptoms of SARS develop over 1 week and start with a fever. Early on, people develop flu-like symptoms, such as:

a dry cough

chills

diarrhea

breathlessness

aches

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Answered by abhithegreat478
2

Answer:

_Causal organism ---Covid 19 is primarily considered as a respiratory illness as its causative agent is SARS CoV-2, which targets the respiratory system

_Origin ---Retrospective investigations by Chinese authorities have identified human cases with onset of symptoms in early December 2019. While some of the earliest known cases had a link to a wholesale food market in Wuhan, some did not

_Mode of transmission---Transmission of COVID-19 is the passing from person to person of coronavirus disease 2019. The virus is transmitted when people are exposed to contaminated respiratory particles that infected people release as they breathe, talk, cough, sneeze or sing.

_Symptoms---• fever,

• cough,

• Shortness of breath and

• breathing difficulties.

In more severe cases, infection can cause pneumonia, severe acute respiratory syndrome, kidney failure and even death.

Symptoms may appear 2-14 days after exposure to the virus.

_Treatment---There is no specific, effective treatment or cure for coronavirus disease 2019 (COVID-19), the disease caused by the SARS-CoV-2 virus. Thus, the cornerstone of management of COVID-19 is supportive care, which includes treatment to relieve symptoms, fluid therapy, oxygen support and prone positioning as needed, and medications or devices to support other affected vital organs

_ Preventive measures, giving DOs and DON’Ts. ---

Facts about Coronavirus Outbreak

Do’s

1. Hand Wash

2. Cover Your Mouth & Nose

3. Consult a Doctor If Sick

4. Stay Indoors

Don’ts

5. Avoid Close Contact with Anyone

6. Do Not Spit

7. Avoid Using Public Transport

8. Do Not Use Over the Counter Medicines

9. Don’t Panic, Take It Easy

10. Don’t Touch Your Face

_A Life after COVID-19 Era---

Covid-19 created a record-level disruption across several industries, forcing employers to respond at a record-level pace — including implementing remote jobs on the spot, while, as much as possible, easing employees' concerns to reduce worry and stress. Now, in a few weeks, states will reopen and many of us will return to an unrecognizable life’s As long as there is no vaccine and there is no cure, the way we engage with physical product and services will change. Many will reframe from the desire to touch or be touched there is now fears about what life post-COVID-19 will look like, which can take an emotional toll. It can drain one's energy and eat away at one’s creativity and ability to stay innovative. The time we are in now can remind us of World War II, in that sense; many of the innovations we enjoy today were invented during the war or right after. Crises, challenges, and constraints can be used as a driving force. ”Just six months ago, many feared losing their jobs to robots and automation. Almost overnight, we are no longer talking about that fear, or at least we're talking about it The world will become "hands-free", and by that, I mean the delivery of products and services completely without physical human contact of any kind - we will not "touch and do not want to be touched".Post-Covid-19, there will be an influx of new talent in the market, take this opportunity to invest in your workplace culture. Solving these challenges will be critical to the company's success since it will profoundly impact employee

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