After N-E, it's Karnataka's turn now to finish off Congress: PM Narendra Modi

Bengaluru, Mar 21: Appealing for support to the Prime Minister's call for observing 'Janata Curfew' on Sunday to contain the outbreak of COVID-19, Karnataka Chief Minister B S Yediyurappa has asked people not to come on roads immediately after the end of curfew time as it can nullify the measure.

Noting that people have extended both moral and societal support to this unique curfew, he said "Now, my appeal to people on behalf of Prime Minister Narendra Modiji is, don't come on roads and out of your dwellings immediately after nine in the night when curfew time ends. Remain settled in your houses and bungalows avoiding all public appearances on roads and other public places."

"Your coming out in open can nullify the 14-hour measure to contain the spread of virus. As a co-operation to authorities and the society, please remain indoors and stay with your near and dear ones," he said in a release.

Calling for "resolve and restraint" to fight the virus, the Prime Minister during his address to the nation on Thursday had asked the entire country to observe 'Janata curfew' on Sunday.

Calling for a 'Janata curfew' on March 22 from 7 am-9 pm, Modi had said no citizen, barring those in essential services, should get out of their house, and asserted that it will be a litmus test to show how much India is ready to take on the challenge of the coronavirus pandemic.

Stating the Karnataka government has so far been dealing successfully in containing the Covid-19 virus, Yediyurappa said this has happened because of people's co- operation.

He also asked people not to forget to involve in a bout of applause as a mark of appreciation to people involved in containing the spread of the virus and treating those affected by it.

Three new COVID-19 cases have been confirmed in Karnataka on Saturday, taking the total number of infections to 18 in the state.

The deadly coronavirus that entered India while there was still nip in the air has beaten rising mercury, humid conditions, unique Indian genome and has entered monsoon season with more potency as fresh cases are only breaking all records in the country.

India recorded a single-day spike of record 24,850 new coronavirus cases on Sunday, taking its total tally to 6.73 lakh corona-positive cases.

Top Indian microbiologists were hopeful in March that after the 21-day lockdown, as summer approaches, the rise in temperature would play an important role in preventing the drastic spread of COVID-19 virus in India.

Several virologists hinted that by June this year, the impact of COVID-19 would be less than what it appeared in March-April.

The claims have fallen flat as the virus is mutating fast, becoming more potent than ever.

According to experts, the novel coronavirus is a new virus whose seasonality and response to hot humid weather was never fully understood.

"The theory was based on the fact that high temperatures can kill the virus as in sterilisation techniques used in healthcare. But these are controlled environment conditions. There are many other factors besides temperature, humidity which influence the transmission rate among humans," Dr Anu Gupta, Head, Microbiologist and Infection Control, Fortis Escorts Heart Institute, told IANS.

There is no built-up immunity to COVID-19 in humans.

"Also, asymptomatic people might be passing it to many others unknowingly. New viruses tend not to follow the seasonal trend in their first year," Gupta emphasized.

Globally, as several countries are now experiencing hot weather, the World Health Organization (WHO) reported a record hike in the number of coronavirus cases, with the total rising by 2,12,326 in 24 hours in the highest single-day increase since COVID-19 broke out.

So far over 11 million people worldwide have tested positive for the disease which has led to over 5,25,000 deaths, according to data from Johns Hopkins University. The US remained the worst-hit country with over 28 lakh cases, followed by Brazil with 15.8 lakh.

According to Sandeep Nayar, Senior Consultant and HOD, Respiratory Medicine, Allergy & Sleep Disorders, BLK Super Speciality Hospital in New Delhi, whether temperature plays a role in COVID-19 infection is highly debated.

One school of thought said in the tropical regions of South Asia, the virus might not thrive longer.

"On the other hand, another school of thought has found that novel Coronavirus can survive in a hot and humid environment and tropical climate does not make a difference to the virus. According to them, this is what distinguishes the novel coronavirus from other common viruses, which usually wane in hot weather," stressed Nayar.

Not much has been studied in the past and no definite treatment or vaccine is available to date.

"Every day, new properties and manifestation of the disease come up. As of now, the only way to prevent this monster is by taking appropriate precautions. Hand hygiene, social distancing, cough etiquette and face masks definitely reduce spread of COVID-19 infection," Nayar told IANS.

Not just top Indian health experts, even Indian-American scientists had this theory in mind that sunshine and summer may ebb the spread of the coronavirus.

Ravi Godse, Director of Discharge Planning, UPMC Shadyside Pennsylvania in the US told IANS in April: "In the summer, the humidity can go up as well, meaning more water drops in the air. If the air is saturated with water and somebody sneezes virus droplets into such air, it is likely that the droplets will fall to the ground quicker, making them less infectious. So the short answer is yes, summer/sunshine could be bettera.

According to Dr Puneet Khanna, Head of Respiratory Medicine and Pulmonology, Manipal Hospital, Delhi, COVID-19 death rates are not too different in tropical countries but since the disease affected them late it was yet to show its peak in these areas.

"The virus can survive well in hot and humid countries and this is proven now," he stressed.