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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.

May 6: Congress general secretary KC Venugopal on Tuesday termed as "inhumane" the government's decision to "impose excessive costs" on NRIs and expatriates for bringing them into the country from COVID-19-affected nations.

He demanded that the central government fly in the poor and vulnerable free of cost while charge the others with normal fares instead of high costs.

"The central government's decision to impose excessive costs on NRIs flying in special flights from the Covid-affected countries is an inhumane act," he said in a statement.

Venugopal said it was due to protests by a large number of expatriates and their relatives as well as the general public over the past few days that the central government took the decision to bring back Indian citizens from abroad.

"However, it is cruel that the Central government has taken advantage of this plight of expatriates by increasing the price of air fares up to three times. This is inhumane," Venugopal said in his statement.

He urged the Centre to take urgent steps to provide free travel to the most vulnerable, unemployed, sick and pregnant women and to others on normal fare.

Air India will operate 64 repatriation flights for a week from May 7 while the Navy deployed two ships as India rolled out a massive evacuation plan on Tuesday to bring back thousands of its nationals stranded abroad due to the coronavirus-triggered lockdown.

Those availing the repatriation flights will be charged, Civil Aviation Minister Hardeep Singh Puri told a virtual press conference in New Delhi. A passenger on a London-Delhi flight will be charged Rs 50,000 and on a Dhaka-Delhi flight Rs 12,000, he added.

From the Gulf countries to Malaysia and the UK to the US, the multi-agency operation christened 'Vande Bharat Mission' will see the state-owned airline operate the non-scheduled commercial flights till May 13 to ferry around 15,000 Indian nationals from 12 countries.

Bengaluru, July 15: The family members of a 67-year-old man, who had developed some symptoms of Covid-19, was in for a rude shock when a “reputed” private hospital in Bengaluru’s Whitefield quoted estimated bill of Rs 9.09 lakh for 10 days.

The elderly man was rushed to Columbia Asia Hospital even before receiving his covid-19 test report. But after a look at the estimated bill, the family chose not to admit him there.

The break-up of the estimated bill included Rs 1.40 lakh for ventilator, Rs 3 lakh for medicines, medical supplies and consumables, Rs 2 lakh for laboratory investigations, Rs 75,000 for room rent, Rs 75,000 towards professional fee, Rs 58,500 for nursing charges, Rs 35,000 for radiology investigations and physiotherapy, and Rs 25,000 for equipment and surgical items.

The hospital authorities reportedly told the family members that the actual bill could be higher in the event of complications, unanticipated extension of stay and comorbidities.

“He was tested on Sunday and we were waiting for the result. On Monday, he started gasping for breath. Columbia Asia Hospital told us they had an ICU bed and we rushed him to the emergency care. When they showed us the estimate, we were shocked,” said Abdul Bashir, a nephew of the patient.

“We then contacted Dr Taha Mateen of HBS Hospital through an NGO ‘Mercy Mission’. We got him admitted there for just Rs 25,000,” he said adding that Hospitals should not take advantage when emotions are running high.