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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.

Udupi, May 18: As many as eight fresh coronavirus positive cases have been reported in coastal districts of Udupi and Uttara Kannada. 

No fresh positive case was reported in Dakshina Kannada since yesterday.

According to Health and Family Welfare Department, two men aged 38 and 24 years, an 8-year-old boy and a 24-year-old woman tested positive for coronavirus in Udupi district today. 

All of them were under quarantine after returning from Maharashtra recently. They were shifted to covid-19 hospital for treatment. With this the number of covid-19 positive cases in Udupi district mounted to 15.

Meanwhile, Uttara Kannada district also received a jolt with four more cases. Yesterday it had reported eight cases.

Jun 4: Belur Mutt, the global headquarters of Ramakrishna Mutt and Ramakrishna Mission, has decided to throw open its gates to the devotees from June 15 after putting in place all safety measures required to contain the spread of COVID-19.

The gates of the sprawling premises of the mutt set up by Swami Vivekananada at Belur near here was closed since the lockdown was announced in March by the Centre. The Mutt has devotees from across the globe.

The secretary of Belur Mutt Ramakrishna Mutt and Ramakrishna Mission, Swami Suvirananda said in a statement that as the easing down of lockdown measures announced by the Centre and the state did not indicate the threat caused by COVID-19 pandemic is over, the authorities thought it prudent to put in place all the measures required before opening the gates of the Mutt and all RKM centres in the country for the scores of devotees.

The statement was issued on June 1, the day religious places of worship were thrown open by the West Bengal government.

"We had to think about both aspects - the issue of public health and also the wish of our devotees for having a darshan of the shrines of Swami Vivekananda, Sri Sarada Maa and Ramamrishna Paramahansa. But we believe spirituality and sceintific temparament must go hand in hand," he told reporters on Thursday.

"Therefore it is imperative for us to consult experts and put in place adequate arrangement and infrastructure" before opening the (Belur Mutt) gates," he said.

The senior monk said the timing of the opening and closure of the shrine and all other details conforming the health protocol and guidelines will be announced before opening date.

The Mutt complex had become totally out of bound for visitors from March 24 when the lockdown was clamped. There was restricted entry to it since May 16.