what is coronavirus'
a. structure
b. How does it spread?
c. Preventive measures
d. It’s impact on the environment and our lives.
Answers
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Coronavirus disease (COVID-19) is an infectious disease caused by a newly discovered coronavirus.
Most people who fall sick with COVID-19 will experience mild to moderate symptoms and recover without special treatment.
The virus that causes COVID-19 is mainly transmitted through droplets generated when an infected person coughs, sneezes, or exhales. These droplets are too heavy to hang in the air, and quickly fall on floors or surfaces.
You can be infected by breathing in the virus if you are within close proximity of someone who has COVID-19, or by touching a contaminated surface and then your eyes, nose or mouth.
Coronavirus disease (COVID-19) is an infectious disease caused by the SARS-CoV-2 virus.
a. Structure of corona virus'
spherical and have proteins called spikes protruding from their surface. These spikes latch onto human cells, then undergo a structural change that allows the viral membrane to fuse with the cell membrane
b. How does it spread?
Current evidence suggests that the virus spreads mainly between people who are in close contact with each other, typically within 1 metre (short-range). A person can be infected when aerosols or droplets containing the virus are inhaled or come directly into contact with the eyes, nose, or mouth.
c. Preventive measures :
• Maintain a safe distance from others, even if they don’t appear to be sick.
• Wear a mask in public, especially indoors or when physical distancing is not possible.
• Choose open, well-ventilated spaces over closed ones. Open a window if indoors.
• Clean your hands often. Use soap and water, or an alcohol-based hand rub.
• Get vaccinated when it’s your turn. Follow local guidance about vaccination.
• Cover your nose and mouth with your bent elbow or a tissue when you cough or sneeze.
•Stay home if you feel unwell.
d. it's impact on the environment and our Lives :
• Positive environmental effects :
1) Reduction of air pollution and GHGs emission
2) Reduction of water pollution.
3) Reduction of noise pollution.
• Negative environmental effects :
1) increase of biomedical waste generation.
2) Safety equipment use and haphazard disposal.
3) Municipal solid waste generation, and reduction of recycling.