What is R0 and why is it important?

R0 is a mathematical term that represents the number of new infections that could stem from a single case
The R0 value indicates how contagious an infectious disease is and hence it is an important marker to study the progression of a disease
As an infection is transmitted to new people, it reproduces itself. Therefore, R0 is also referred to as the reproduction number
R0 indicates the average number of people who contract a contagious disease from an infected person
It specifically applies when everyone in the population is completely vulnerable to the disease
That is, people in a population where no one has been vaccinated, no one has had the disease before and when there’s no way to check the spread of the disease
Using the R0 value, the transmission rate of a disease or its decline can be calculated
If R0 is less than 1, each existing infection causes less than one new infection. In this case, the disease will decline and eventually die out
If R0 equals 1, each existing infection causes one new infection. The disease will stay alive and stable, but there won’t be an outbreak or an epidemic
If R0 is more than 1, each existing infection causes more than one new infection. The disease will be transmitted between people, and there may be an outbreak or epidemic
R0 of a disease is calculated on the basis of its infectious period, mode of transmission, and contact rate
If the disease has a longer infectious period, then it is more likely that an infected person can transmit it to other people
So the R0 value will be higher if it has a longer infectious period
The disease will be transmitted quickly, if an infected person comes in contact with people who aren’t infected or vaccinated. Therefore, high contact rate will result in a higher R0 value
The mode of transmission also contributes to the R0 value
For example, airborne illnesses are transmitted the fastest and easiest. Therefore, they tend to have a higher R0 value than those spread through direct contact
Countries have been trying to find out the R0 value of COVID-19 as a metric to find out the transmission rate of the virus
But the R0 value is not a constant number
The estimates can vary by location, depending on factors such as how often people come into contact with each other and the efforts taken to reduce viral spread
Preliminary studies estimated a global R0 value for COVID-19 to be between 2 and 3.This means each infected person has spread the virus to an average of 2 to 3 people
But some recent studies suggest COVID-19 has an even higher R0 value
According to Institute of Mathematical Sciences, Chennai, between April 13 and May 10, the R0 value of COVID-19 in India remained steady at 1.29
At the beginning of lockdown, it was 1.83
An R0 of 1 and above tends towards exponential growth whereas an R0 of below 1 tends towards the end of the outbreak
Therefore, it is important to is keep the R0 value below 1

[@gaurangagarwal7279]

this is the most lucid explanation of this topic on youtube! hatsoff to research team of the hindu

[@SachinVerma-pl8wi]

Clred a imp topic of upsc.....
It's very helpful

[@javithrazvi7453]

The script is very simple and clear. The animation was also good. It was not so cartoonish, which I appreciate.

[@RahulHasan]

Please start your News Channel .📺
Like your News Paper .

[@ammathapoot]

Superp explain सच कहें तो गरीबी m आपका सहारा h
वरना mostly news are base on कचरा content thank you 💐🙏💐

[@rosy6858]

This is really appreciatable.....thanku.

[@elninolanino8915]

So calm n clear. Tq ..

[@akbarsaleemshaik9756]

Perfect vedio on R0 value

[@sjcreation1097]

Thanks a lot 🙏

[@ray1ar007]

Thanks for covering this. 👍🙏

[@subscribe-cheskondi]

Sincere thanks to the management of hindu ..

[@ankitkumar-ii9ee]

Excellent

[@Himanshu-sd9nc]

I really appreciate the content of this channel.

[@puntoevo]

Statistics plays an important role in the fight against the pandemic

[@ravisubhash8813]

No one like you.. thanks for information

[@OMG.1996]

Thanks!

[@biswajitdeysarkar7787]

Good content....make more like this

[@sonamabrol8916]

Thanks a ton 👍🙏

[@nimbusbright7114]

simple and great explanation

[@sahajgupta5225]

keep it simple. R naught is the indicator of an infection. It depends on various factors. And it is the value which indicates that one can person can transmit that disease to another person. Keep it simple. value greater than 1 means ... spreading.. equal to one means transmission from one to another.. means can go higher or lower.
less than one.. awesome.. means curve is starting to lower and spreading the infection is less likely to transmit from person to person. chill pill.

[@i.krahman9272]

Informative video thanks for uploading 👍

[@Surajmal0308]

Neat English.

[@brishketu1345]

It isn't possible to keep it below1. Offices has started with less than 1m distance between employees.

[@darth_27]

Great content with high clarity

[@englishhub73]

👍

[@Darth_manick]

Pretty sure the woman reader is from Kerala

[@lohithashwa6653]

Anybody here after omicron? Let's just hope this isn't as severe as the previous wave.

[@ephemeris9432]

I thought this was Reverse Osmosis

[@dorw5605]

SO R0 below 1 is good 1 is meh and above 1 is bad got it thanks..

[@NithiyaAdithiya1808]

The Hindu very sorry to tell, you are ver...........y late in posting this news...BBC Tamil posted RO news 1 month back 😄

[@harshajitchoudhury2045]

the accent sounds creepy.