Uprooted tree blocks NH 73 between Mangaluru and Chikamagaluru

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.

Thiruvananthapuram, Feb 17: Out of the total 418 samples of suspect coronavirus cases sent for testing to National Institute of Virology from Kerala, 405 have come out as negative, while the results for the rest, barring three, are awaited.

"Out of three persons in whom the disease was confirmed, two persons have been discharged. One person is stable and the repeat sample results are awaited," according to a release by the Health and Family Welfare Department of the Kerala government.

The release added that till Sunday a total of 2,276 people have been placed under surveillance, "out of which 2262 are under home isolation and 14 are admitted in designated isolation facilities."

The health condition of all symptomatic people under isolation is stable, according to the release.

The release added that the Ministry of Health and Family Welfare (Centre) has informed the Kerala government that 115 people belonging to Kerala are currently in quarantine in two camps in Delhi.

These 115 people have been tested and found negative for coronavirus and they will be allowed to travel back to Kerala on Monday evening.

The people have been requested to remain in home isolation upon their return.

Davanagere, Jun 15: Karnataka Health Minister B Sriramulu was on Monday seen without face mask at an event in Davanagere amid COVID-19 crisis in the country.

The Minister was attending the wedding ceremony of son of former minister Parameshwar Naik at Hagaribommanahalli in Davanagere.

This is not the first time that Sriramulu has flouted the norms for preventing the spread of COVID-19. He took part in a procession in Chitradurga on June 2 and flouted social distancing norms. He was seen surrounded by several supporters while a big garland was being offered to him.

The state has reported 6,245 COVID-19 cases including 2,977 cured, 3,196 active cases and 72 deaths.