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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, May 23: It was a stampede-like situation near Palace Grounds in Bengaluru on Saturday afternoon. The incident took place after hundreds of migrants gathered and jostled to gain entry. The situation raises concerns as no social distancing norms were followed.

According to Chetan Singh Rathore, DCP Central, the reason behind the stampede-like situation was an en masse message. "What we heard was that an en masse message has been conveyed to the people of Manipur and Odisha that they would be able to go home on trains on Saturday. The message did not consider the capacity of the train which is only 1500 seating capacity for Manipur train and 1500 for Odisha train," he told media.

Singh further added, "But the people gathered were around 3000 in number for the Manipur train and 5000 for the Odisha train. Passengers with tickets and requisites were allowed to travel while others were asked to return home and wait for their turn to travel back home."

The state of Karnataka has eased lockdown restrictions across, allowing state transport services to run. Lately, the government has been running special Shramik trains from Karnataka to ferry migrant workers back to their hometowns.

Mangaluru, Mar 12: Deputy Commissioner Sindhu B Rupesh on Thursday said that the test reports of the 35-year-old passenger from Dubai have shown no signs of either Coronavirus (COVID-19) or H1N1.

In statement issued here Ms Rupesh said that the passenger has now been discharged from the Bantwal hospital. He has been asked to stay at home quarantined for the next 14 days.

The passenger, who had been diagnosed with fever after he arrived at the airport from Dubai on March 8, had left the Government Wenlock Hospital in the early hours of March 9 refusing to undergo tests.

Later, he was traced and admitted to the hospital in Bantwal and his throat swab samples had been sent to Viral Research Diagnostic Laboratory (VRDL) in Hassan Institute of Medical Sciences.

Meanwhile, throat swab samples of six patients were also found negative for COVID-19.

As many asf 49 people were under quarantine in the district of which five have completed the 28-day cycle.

All passengers arriving by international flights and those in contact with them should voluntarily report to the district health team and undergo self-quarantine for 14 days. If there were symptoms of cough, cold and fever, they should undergo tests for COVID-19. If the reports were positive for COVID-19, then they have to stay in the isolation ward of the Government Wenlock Hospital or in the seven select private hospitals for 28 days.

Screening facility at the airport has been strengthened by posting doctors from seven private medical colleges on rotation basis. These doctors would be in addition to the medical officer at the airport. An ambulance has been placed at the airport exclusively to shift people to the hospitals, she added.

The State government has issued a notification on Wednesday authorising Deputy Commissioners to get the affected admitted by force, if necessary.