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Know more about COvid-19

Q1. What is Covid? What are its symptoms?

A1. Coronavirus Disease (Covid-19) is an infectious disease caused by novel coronavirus. The symptoms of Covid-19 are:


1. Most common symptoms:

• Fever.

• Dry cough.

• Tiredness.


2. Less common symptoms:

• Aches and pains.

• Sore throat.

• Diarrhea.

• Conjunctivitis.

• Headache

• Loss of taste or smell.

• A rash on skin, or discoloration of fingers or toes.


3. Serious symptoms:

• Fever.

• Dry cough.

• Tiredness.


The symptoms of Covid-19 appear 2-14 days after exposure to the virus.


Q2. Where did the virus come from and what is the current state of the virus in the world and India?


A1. In December 2019, coronavirus was identified as the cause of a disease outbreak that originated in Wuhan, China.


Q3. How can Covid-19 be prevented? What measures can one take?


A3. As there is no vaccine currently available to prevent coronavirus disease (Covid-19), the best way to prevent illness is to avoid being exposed to the virus.


The virus spreads mainly from person-to-person under the following situations:


1. People in close contact with one another (Distance less than 6 feet).


2. Through respiratory droplets when an infected person coughs, sneezes or talks as these droplets can land in the mouth or nose of the people nearby or can be inhaled through lungs.


Precautions to be taken to prevent Covid-19:


1. Wash your hands: Keep your hands clean and wash them regularly with soap and water for at least 20 seconds or use hand sanitizer that contains at least 60% alcohol. Do not touch your mouth, nose or eyes with unwashed hands as it can lead to direct inhalation of virus into the body.


2. Use Mask: Cover your mouth and nose with mask when stepping out of your home as it prevents the direct spread of virus from one to another.


Masks should not be worn by the following:


1. Wash your hands: Keep your hands clean and wash them regularly with soap and water for at least 20a. Children younger than 2 years old.

b. Anyone who has trouble breathing.

c. Anyone who is unconscious, incapacitated, or otherwise unable to remove the mask without assistance.


3. Social Distancing: Keep at least 6 feet of distance between yourself and others while you are outside of your home. This is important as it reduces the chances of one catching virus from another.


4. Cover coughs and sneezes: Always cover your mouth and nose with tissue while coughing or sneezing or use the inside of your elbow. Do not spit publicly and throw the used tissue into the trash bin immediately. Afterwards, immediately wash your hands with soap and water for at least 20 seconds or use hand sanitizer to prevent inhalation of virus.


5. Clean and disinfect: Regularly touched surfaces should be cleaned and disinfected regularly as to avoid accumulation of dirt and to reduce the risk of virus.


6. Monitor your health daily: Take proper precautions, check your temperature daily and be alert for symptoms.


Q4. What is a N95 mask? What does it prevent against? What does it not prevent against? What is its construction (layers + barriers) and key specifications? What are the authorizing bodies in India?


A4. An N95 respirator (mask) is a respiratory protective device designed to achieve a very close facial fit and very efficient filtration of airborne particles. The edges of the respirator are designed to form a seal around the nose and mouth.


The pros of N95 mask are:


1. Dense filter as it filters 95% of airborne particles.

2. Filters airborne particles and droplets.

3. Medical grade certified.


The cons of N95 mask are:


1. Harder to breathe.

2. Healthcare providers need them.

3. Require training to wear properly.


Links:


https://www.3mindia.in/3M/en_IN/safety-in/stories/full-story/?storyid=2540cae2-eaef-4d0b-b719-3406f5ed841a


https://multimedia.3m.com/mws/media/1794572O/surgical-n95-vs-standard-n95-which-to-consider.pdf


https://www.fda.gov/medical-devices/personal-protective-equipment-infection-control/n95-respirators-surgical-masks-and-face-masks#:~:text=nose%20and%20mouth.-,An%20N95%20respirator%20is%20a%20respiratory%20protective%20device%20designed%20to,efficient%20filtration%20of%20airborne%20particles.&text=surgical%20N95s%20are%3A-,They%20are%20tested%20for%20fluid%20resistance%2C%20filtration%20efficiency%20(particulate%20filtration,efficiency)%2C%20flammability%20and%20biocompatibility.


https://www.cdc.gov/coronavirus/2019-ncov/prevent-getting-sick/prevention.html