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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.

Mangaluru, Jan 15: Popular Front of India leader Mohammed Saqib came down heavily on Mangaluru City Police Commissioner Dr P S Harsha for justifying the Dec 19 firing which claimed two Muslim lives in the city.  

He was addressing a mammoth crowd of around two lakh people, mostly Muslims, who had gathered at Shah Garden at Adyar in Mangaluru today to register their protest against CAA, NRP, NRC, besides police atrocities on Muslims in Mangaluru.

Criticising the way the commissioner handled the situation on December 19, he said the people have all the right to agitate when their citizenship is endangered. 

“Two men lost their lives. Then Commissioner started releasing misleading videos (to justify the killing),” he said questioning the top cop: “Who are you? Are you a British?” 

“What kind of doctor you are? You are a doctor in creating false stories,” he said whiling taking on the top cop for claiming that protesters had tried to storm the Mangaluru North Police Station.

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Bengaluru, Jul 15: With the state capital along with a few districts under lockdown to control the spread of Covid-19, Karnataka Home Minister Basavaraj Bommai on Wednesday said the measure was important to break the chain and people seem to have understood its importance.

Appealing for cooperation from the people, he asked them not to make it inevitable for police to use force in implementing the lockdown. "Traffic movement is less, there is a lockdown atmosphere everywhere, I feel that people have understood the importance... cooperation is required. I appeal to the people, if this lockdown has to be effective it has to be voluntary, only then we can control the rapid spread of coronavirus," Bommai said.

Speaking to reporters here, he said this lockdown is important, last time the infection was not up to this level. "This time areas that have a high number of infections- about five districts and Bengaluru city are going for lockdown. People have understood that this lockdown is to break the chain," he said. "Please don't make it inevitable for police to use force," he added.

Bengaluru urban and rural areas are under "complete lockdown" since last night at 8 pm and it will be effective till 5 am on July 22.

Following Bengaluru urban and rural, administrations in several districts like Dharwad, Dakshina Kannada, Kalaburagi (only in Urban areas), Bidar, Raichur (in Raichur city and Sindhanur) and Yadgir too have announced lockdown.

Noting that Police have taken all necessary strict measures to enforce lockdown in Bengaluru urban and rural districts by restricting the movement of vehicles and people, Bommai said barricades have been erected at various places and flyovers have been shut. People have been allowed to purchase vegetables and groceries till 12 noon, he said.

The government has warned of action in case of any violation of the lockdown rules. As of July 14 evening, cumulatively 44,077 Covid-19 positive cases have been confirmed in the state, which includes 842 deaths and 17,390 discharges. Bengaluru Urban district tops the list of positive cases, with a total of 20,969 infections.