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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.

Bengaluru: Karnataka chief minister BS Yediyurappa on Tuesday shuffled the portfolios of six newly inducted ministers after they expressed unhappiness about the departments allocated to them barely 24 hours ago.

Three ministers — BC Patil, Anand Singh and K Gopalaiah — received new responsibilities and as many — Shivaram Hebbar, Srimanth Patil and Byrathi Basavaraj — have been saddled with more.

Sources said the six ministers met the CM late Monday night and said they were not happy with the portfolios handed to them. They reportedly threatened not to assume office until their demands were met, forcing the CM to effect the changes early Tuesday.

BC Patil is now vested with agriculture (he had been given forest), Anand Singh forest, environment and ecology (earlier food and civil supplies) and Gopalaiah food and civil supplies (instead of small-scale industries). BC Patil said, “I’m happy I can now be with farmers.” Shivaram Hebbar has been given the additional responsibility of sugar along with labour allocated to him on Monday.

Allocation of the forest portfolio to Anand Singh has raised eyebrows as the Vijayanagara MLA had been arrested in 2013 and 2015 in cases of illegal mining and illegal transportation of mining ore. Singh owned SB Mineral in Ballari and the Lokayukta had charged him with transporting 17,086 tonnes of iron ore without permission or valid licence. He was acquitted in a Belikeri iron ore export case due to lack of evidence.

Byrathi Basvaraj, who has been given the urban development ministry, will also handle Karnataka Urban Water Supply and Drainage Board and Karnataka Urban Infrastructure Development and Finance Corporation.

Srimanth Patil has received minority welfare department apart from textile.

The exercise of portfolio shuffling is likely to continue with minister K Sudhakar reportedly unhappy with medical education.

In another embarrassment to the CM, Mahesh Kumathalli on Tuesday refused to take over as chairman of the Mysore Sales International Ltd, saying he wants to be a minister. BJP MLA Basanagouda Patil Yatnal urged Yediyurappa to induct Kumathalli into the cabinet in line with the promise made to him when he joined the BJP before bypolls. “The CM must keep his word,” he said.

Mangaluru, May 23: Two more persons tested positive for covid-19 in Dakshina Kannada today taking the district's tally to 65.

One among them is a 30-year-old man who had returned from Maharashtra and was under quarantine. He underwent test at a private lab and was tested positive.

The other one is a 41-year-old woman who is a resident of Shirlalu in Beltangady and had symptoms of influenza-like illness. 

She was urged by residents in the surroundings of her house to go for a test. She was shifted to Wenlock COVID hospital in the morning on Saturday.