Amidst protests foundation stone laid for Koosamma Shetty Haji Abdulla hospital

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, Apr 27: Two more people including an elderly woman have been tested positive for the novel coronavirus in Dakshina Kannada. 

With this the total number of covid-19 cases in the district reached 21, though most of them have recovered and returned home. 

In its today's bulletin, the health and family welfare department confirmed that a 45-year-old man and his 80-year-old mother tested positive for the deadly disease. 

It is learnt that one of them had undergone treatment at a private hospital where a woman from Bantwal, who died of covid-19, was being treated for breathing difficulties, before she was shifted to Wenlock Hospital which is now converted into covid-19 hospital.

Bengaluru, May 24: With 130 new cases, Karnataka's COVID-19 tally crossed the 2,000-mark on Sunday. Most new cases reported have interstate travel history with 97 coming from Maharashtra. The number of active cases in the state is 1,391 and the deaths reported so far is 42, including 2 for non-COVID reasons.

"Ninety seven of the 130 new patients are returnees from Maharashtra, the worst affected state in the country with 47,190 cases till Saturday," said a state health official. 

"The total number of COVID-19 cases across the state is 2,089, with 130 more testing positive in the past 18 hours," said the official.

Forty six patients were discharged from hospitals on Sunday taking the number of cured persons to 634. Of the 46 discharged, 18 are in Davanagere, 20 in Uttara Kannada, 4 in Chitradurga, 3 in Bagalakote and one in Haveri.

Of the 30 Karnataka districts, Chikkaballapura recorded the highest cases on Sunday at 27, followed by Yadgir (24), Udupi (23), Mandya (15) and Hassan (14).

Chikkaballapura is the home district of Medical Education Minister K Sudhakar, a doctor by profession, who is spearheading the fight against the pandemic.

On Saturday, the state's tally shot up to 1,959 due to 196 new cases, the highest single-day rise, with 195 of them crossing over from Maharashtra through the inter-state border, which was opened up as part of partial relaxation of the lockdown.  

The Karnataka government has imposed institutional quarantine on persons traveling in from outside the state, particularly by flight from Maharashtra, Gujarat, Tamil Nadu, Delhi, Rajasthan, and Madhya Pradesh.