With harshful situations of covid casualties running faster and heading ahead there has been a tension of its evolution. There has been an independent investigation into the origin of COIVD -19 pandemic. Many scientists around the world are trying hard to uncover when and where and how the new corona virus got into contamination.
The most important work is to find out sources is important for preventing further reinfection, but scientist’s investigation. These includes modeling, cell studies and animal experiments revealing how tricky pinpointing the source that might be.
There are strong evidences that the corona virus originated at the Wuhan market and some says this came from Bats. Still it remains mystery of how it travelled from bats to man. It might have an intermediary in between or might have sourced from any other being.
Even there are separate teams from china trying to trace the origin of the virus. These are the Chinese center for Disease control and prevention and the other one is from Chinese academy of sciences.
The SARS –CoV -2 is spreading easily from person to person and people who are quite near physically or have direct contact with person suffering with COVID -19 are at higher risk of infection. But still there is no evidence that the animals are playing any significant role in spreading the infection to people. As per data available, the risk of animal spreading COVID-19 to people is considered to be low. For that reason, it’s important that more studies and research are needed to go through with how different animals could get affected by SARS-CoV-2.
Animals and COVID -19:-
The first animal that got infected with the SARS –CoV -19 is a tiger from the New York Zoo who tested positive. The infection was also reported in Mink on the firms at different countries and even in the US. Across United States, the death of Mink increased in the mink firms. But some of the infected didn’t have any kind of symptoms. It’s expected that the infected workers might have introduced the disease to the mink in the farms and then led to the spread of the virus to other animals in the farm.
Recently there is no evidence if minks are playing any significant role in the spread of SARS-CoV-2 to people. Animals were tested recently for the covid virus but are tested negative and there is no mutation expected and is also not seen before in mink from the farms in the Netherlands and Denmark and are also linked to mink farms globally.
Research on animals and COVID-19:-
There are many studies been done and are also giving some results on covid-19. Even recent experiments have shown that many mammals including cats, dogs, bank voles, fruit bats hamsters, minks, pigs, rabbits, tree shrews and even the white tailed deer can also get infected by the virus. Number of studies has even investigated the non human primates as the model for human infections. There are rhesus macaques, cynomolgus macaques, baboons, grivets and the common marmosets which can be infected with the virus and become ill in the laboratory settings. Even the laboratory mice, chickens and ducks don’t seem to have infected or spread as of the results.
Clearing the misconception:-
As of researchers from the south china agricultural university in Guangzhou, it’s the pangolin as the highly sought after in china for its scales and meat. These are used for traditional medicine. The sales of the animal are forbidden in china as a part of the world wide ban. These are smuggled in the form of handful of the south East Asian and African countries. It’s a myth or a fact that the virus could evolve as it circulates among the animals and that too in the possible way that threaten the efficacy of vaccines or makes the pathogen more deadly and infectious to people. Corona virus researcher at the Mc Master University of Hamilton, Canada said that the virus seems to happen as a tension for all with bringing negative impact to life style.
Over the past year, scientists those have tried to ascertain how much and what kind of risk is there. There are global efforts being carried under way to survey the wild life and catch spillover as soon as possible. The researchers are testing animals from homes, zoos, shelters, veterinary clinics, farms and their surroundings. If any positive cases are detected, countries immediately notify the WHO department for animal health sciences. For the purpose, scientists have used computational models and have studied the cells and complete animal to identify the species that are most vulnerable to infection with the COVID-19 virus.
Within the last one year, scientists have collected a good number of data and details relating to the susceptibility of different species of the virus which is also related to the past 50 years of influenza.
For clearing the misconceptions, it’s also being declared by the scientists that the rate of infection in animals is rare and whatever primary infection is transferred from human and not animal.
The primary suspect:-
In the earlier situations, pigs were the primary suspect and were in the top watch list. They are known to incubate other viruses like influenza and live in huge number in close proximity to human beings. When the pandemic began around 300 million pigs were farmed in china and probably they are the ones to bring on the pandemic as per some scientists and researchers.
But when the pigs were artificially injected with SARS-CoV-2 , they found that it did not replicate well. These studies suggested that the pigs are largely resistant to infection with the virus. It’s the volume of pigs that are largely resistant to infection with virus but became a tension because of their previous history of infection and contamination globally. Apart from that, bats are also the centre of attraction because of certain evidences that made bat the power to create corona infections.