what do you understand by the term covid-19? draw it's structure and explain it's mechanism. how much contagious is the corona virus. explain by taking into account: a) signs of infection b) transmission c) incubation period d) source or vector e) how does sanitizer and soaps kills the virus
Answers
Answer:
CO' stands for corona, 'VI' for virus, and 'D' for disease. Formerly, this disease was referred to as '2019 novel coronavirus' or '2019-nCoV.' The COVID-19 virus is a new virus linked to the same family of viruses as Severe Acute Respiratory Syndrome (SARS) and some types of common cold.
Transmission
People can catch COVID-19 from others who have the virus. The disease can spread from person to person through small droplets from the nose or mouth which are spread when a person with COVID-19 coughs or exhales. These droplets land on objects and surfaces around the person
Signs of infection
Most common symptoms:
fever
dry cough
tiredness
Less common symptoms:
aches and pains
sore throat
diarrhoea
conjunctivitis
headache
loss of taste or smell
a rash on skin, or discolouration of fingers or toes
Serious symptoms:
difficulty breathing or shortness of breath
chest pain or pressure
loss of speech or movement
Incubation period
The incubation period of the virus is the time between the exposure and the display of symptoms. Current information suggests that the incubation period ranges from 1 to 12.5 days (with median estimates of 5 to 6 days), but can be as long as 14 days.
how do sanitizer and soaps kill the virus
https://www.youtube.com/watch?v=w67_CsQ9dH4
Thank you
how do sanitizers and soap kill the virus?
Answer
Soap molecules have one end that links up with water and another that attaches to fats. The fat-binding end can wedge its way in between the lipid bilayer of the virus, breaking it apart, releasing, and destroying the viral genome. The end that's attracted to water helps the uninfectious viral fragments get washed away. Hands should also be washed for twenty seconds to eliminate the virus. Hand sanitizers are not as effective as handwashing, but they can also work on the lipid bilayer. To be effective, they must contain at least 62 percent alcohol.
I hope it was helpful