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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, Jan 10: Working President of Karnataka Pradesh Congress Committee, Eashwar Khandre on Friday said that his party has extended its support to the demand made by the former chief minister of Karnataka, HD Kumaraswamy, that a House Committee should be formed to probe into Mangaluru violence.

Emphasising the need for a judicial probe into the incident, Khandre said, "Congress has always said that the truth should prevail and that there should be a judicial inquiry and investigation by a sitting Supreme Court judge or a High Court judge into the incident."

"We support his (HD Kumaraswamy) statement that a House Committee should be set up to probe into the incident of Mangaluru violence. Two innocent people lost their lives during the anti-CAA protest, it is very unfortunate," he added.

Two people were killed in Mangaluru in the alleged police firing after protests against the Citizenship Amendment Act turned violent on December 19.

The Act grants Indian citizenship to refugees from Hindu, Christian, Sikh, Buddhist and Parsi communities fleeing religious persecution from Pakistan, Afghanistan, and Bangladesh who entered India on or before 31, 2014.

Mangaluru, Jan 1: Led by two local MLAs belonging to Bharatiya Janata Party, dozens of people today forcibly stopped toll fee collection at Talapady toll gate on the outskirts of the city allowing vehicles plying between Karnataka and Kerala on the national highway 66 to travel without paying any fee for some time.

Mangaluru City South MLA D Vedavyasa Kamath and Mangaluru City North MLA Y Bharat Shetty, who led the workers, said that the Navayuga Udupi Tollway Pvt. Ltd. (NUTPL), the concessionaire of the about 90-km-long highway widening project between Talapady and Kundapura in Karnataka, had failed to complete the project since over a decade.

The service roads and two flyovers under the project remained uncompleted. Hence motorists were facing a hardship. Notwithstanding Nalin Kumar Kateel, Dakshina Kannada MP, arranging ₹56 crore loan to the NUTPL through Axis Bank to complete the prominent Pumpwell flyover in the city, the company had failed to complete it.

The MLAs said that they stopped the toll collection as a symbolic protest to bring pressure on the company to complete the project within this month.

The BJP workers who gathered near the toll gate around 7.30 a.m. forcibly removed the barricades and made the vehicles ply without paying the fee. The workers of the company managing the toll booth did not resist.

The BJP workers said that vehicles would ply without paying toll till about 6 p.m. If the company resumed the collection during the day on Wednesday, the party workers would again forcibly stop it on Thursday, they said.

Shivaprasad Rai, in-charge of toll collection of the company at Talapady, Hejmady and Sasthana on the same highway told The Hindu that the NUTPL collected about ₹7 lakh as toll fee daily at Talapady from over 12,000 vehicles. The loss on Wednesday could be about ₹4 lakh.

The project is being implemented under build, operate and transfer basis.