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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, Jun 20: A 56-year-old head constable, who had tested positive for the coronavirus infection a couple of days ago and was undergoing treatment, died on Saturday, police said.

The deceased, attached to the Kalasipalya police station, was being treated at Victoria Hospital here, they said.

This the second death of a policeman in the state due to COVID-19. The first one was an assistant sub-inspector attached to the V V Puram traffic police station.

Officials said the deceased constable was among nine others who had tested positive for COVID-19.

Meanwhile, an ASI with the Wilson Garden traffic police station here has also reportedly tested positive. According to sources, the ASI is undergoing treatment at a designated hospital and the station has been sanitised. His contacts are being quarantined. 

Bengaluru, May 17: Amidst mounting demand form Kannadigas across the world for repatriation flights in the wake of covid-19 lockdown, Dr Arathi Krishna, former Deputy Chairman of the NRI Forum of Karnataka government, has written to Hardeep Singh Puri Minister of Civil Aviation to operate more special flights to Gulf repatriate Kannadigas from gulf countries. 

Dr Arathi Krishna’s first request in the letter was to add flights from Kuwait, Bahrain and Jeddah to Bengaluru as many (from Karnataka) are stranded in these cities in precarious situations.

In addition, she also requested for a couple of flights from Dammam and Riyadh to Bengaluru as there are more than 3780 Kannadigas registered to return from Saudi Arabia and members of Bearys Chamber of Commerce and Industry are requesting the same. Any number of flights from Dubai to Bengaluru and Mangaluru will also help the stranded people, the letter stated. 

“Old and sick people, pregnant women and others are in urgent need to connect with the world are looking up to you for getting flights from different comers of the world. Indian communities are hopeful that you will use your position to help them to get the much needed mobility at this time,” the letter stated. 

She also said that the people in Karnataka are grateful to you (Mr Hardeep Singh Puri) for adding two flights from Dubai to Bengaluru in the last two schedules and one flight each from Riyadh, Dammam, Muscat and Doha.

Dr Arathi Krishna is currently serving as the Chairman of the NRI Cell of Karnataka Pradesh Congress Committee and Secretary of Indian Overseas Congress.