Skip to main content

COVID-19 - A Natural Phenomenon


Covid-19 - A  Natural Phenomenon
Viruses are not living things ; They are complicated assemblies of molecules, including proteins, nucleic acids (DNA & RNA), lipids and carbohydrates ; But on their own they can do nothing unless or until they enter in living cells ; Where they can replicate themselves & mutate in the host cells ;  Viruses are continuously changing as a result of genetic selection ; They undergo subtle genetic changes through mutation and major genetic changes through recombination . Mutation occurs when an error is incorporated in the viral  genome ; Recombination occurs when  co-infecting viruses exchange their genetic information creating a new type i.e. novel virus ;
In prehistoric times human beings were hunter-gatherer ;  Apart from hunting their prey animals, mainly big herbivorous animals, their interaction with the animal world was minimal ; But along with growth of civilization they started domestication of animals, forming dairies, piggeries, poultry farms etc.  In modern times, along with the growth of population explosion, human interaction with animals like pigs, birds(hen etc.) , has reached to an unprecedented degree of concentration in some pockets of the world, depending on the local food  habits, trade etc. Such pockets have become the dens of tremendous viral accumulation/concentration giving rise to a much higher degree of evolutionary pressure upon virus  mutation ;
Again, let us come back to understand the cause of virus mutation in short & very simple words ; We have already seen that viruses are micro infectious organisms which reproduce inside the living cells of the host ; When infected or attacked, the host cell is forced to rapidly produce thousands of original copies of the of the virus and if error occurs during the process, it may be called a biological accident at micro-organic level,  which give  rise to a  new type of virus which again starts its own replication ;  
Viruses, especially those made of RNA can mutate rapidly  to give rise to new types ; Host cells may have little protection against such new forms ; As for example Influenza virus changes often, so a new vaccine is required to combat it each year ; However, under evolutionary pressure,  when there occurs a  major change by mutation, it causes pandemics, as for example Swine Flu which spread  to most countries in 2009 ;  In many cases, viruses infiltrate and mutate in animal host cells, giving rise to the Zoonotic disease ; Such as Coronavirus in Bats and Influenza in pigs & birds, before they are transferred to humans ;
Thus we see, the  present  Novel  Corona Virus  might well be and most likely is a natural phenomenon like Spanish Flu Pandemic in 1918,  Ebola in West Africa in 1976  etc.  These viruses are extremely detrimental & contagious and along  with the growth of  civilization  the possibilities of their  recurrence in new forms again & again could not be  & cannot be avoided altogether ;
However,  this dangerous virus could not  be prevented from rapidly spreading throughout  the 
world  and it is the  only failure on part of the  mankind ;  

Comments

Post a Comment

Popular posts from this blog

Black Fungus - A General Awareness

  Black Fungus   Slowly following   the Covid-19 Pandemic   a    rare,    deadly & aggressive fungal   infection is spreading as epidemic in India ; As per   recent BBC news already nearly 9 thousand cases have been detected   in various states   like Gujarat, Rajasthan, Tamil Nadu, Orissa and Telengana etc.   How Caused   - Black Fungus or Mucormycosis is caused by a group of fungi that normally live in the environment, particularly   as moulds found in   soil and in decaying organic matters such as leaves, compost piles or rotten wood (CDC- 13/05/2021) ; People get Mucormycosis  of which there are several types by breathing in the fungal spores ; It may also come in hospitals and homes from  air humidifiers or oxygen tanks containing dirty water ; Line of Treatment According to Centre for Disease Control (CDC), the infection needs to be caught early as it is aggressive & dead tissues have to be scraped away ;   Unfortunately, surgeons   sometimes   have to remove 

Covid 19 - The DANGER of a Two Speed Response

  Covid-19 – The DANGER  of   a Two Speed Response   A Global Battlefield The human civilization is just in the middle of a battle now, the battle against a tiny virus   called   Coronavirus ;   To survive, our civilization has to   fight unitedly   to win over this enemy   where   the battlefield remains to be the   whole   area of our planet ; The UN Secretary General Mr. Antonio Guterres   on   24 th   May,   2021, has urged the countries to take bold   decisions now to both end the crisis and   build a safe & healthy future for all ;     The Grim Picture As per a recent report of the WHO Chief,   Mr. T.A. Ghebreyesus, there have been more Covid-19   cases   so far this year than in the whole of   the previous year (2020),   “On current trends” said he, “ the number of deaths will overtake last year’s total within the next three weeks” ;   As against this scenario, most of the   vaccine doses or 75 % ,   have been   administered   only in just   10

Pandemic's Effect on Family Relationship

  Pandemic’s Effect on Family Relationship   It will be a very interesting   discussion if we look into the matter   of   some sort of changes   in family   relationship in this global pandemic atmosphere ;   This Covid-19 Pandemic, being   an once-in-a-century affair, followed by a series  of Lock-downs in almost  every  country,  has so far affected in every  sphere  of  human life, namely, social, cultural,  economic  & also in   family-lives in  almost all the  corners of our planet ;   However,   to   limit the   volume   of this   writing ,   let us   confine our   brief  discussion only  to the  changes  that might have been noticed   due to this pandemic situation  within the family  circles  of two  different  economic  sectors,  i.e., the Working Class &/or Lower- Middle Class People   and   the   Upper-Middle Class people ; At the beginning it should be made clear that the points narrated  below  are not at all comprehensive,  written on the basis of only