Hot weather theory falls flat, coronavirus more potent in India post-summer

Agencies
July 5, 2020

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.

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News Network
May 30,2020

Bengaluru, May 30: Health Minister B Sriramulu banned the consumption of chewing tobacco in public places on Saturday, which is marked as World Tobacco Day. The ban would include chewing paan masala and spitting in public places.

In June 2013, the state banned the manufacture, storage, sale, or distribution of gutka and paan masala containing tobacco or nicotine as ingredients to reduce the prevalence of tobacco use. On October 26, 2016, the state proscribed all kinds of chewing tobacco, containing tobacco or nicotine or both in accordance with the Supreme Court order.

Karnataka is the second state in India to ban e-cigarettes. The state also prohibited single cigarettes. Until September 2019, the state counselled 15,698 patients in tobacco cessation centres set up in private dental colleges.

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News Network
May 24,2020

Bengaluru, May 24: A couple got married in Bengaluru today, even as Karnataka government has announced a complete lockdown on Sundays, as part of the fourth phase of COVID-19 shutdown till the end of this month.

The marriage ceremony on this Sunday was possible thanks to a clarification given by the state government for marriages, which has been already scheduled for May 24 and May 31 to be exempted from the Sunday complete lockdown.

At today's wedding, the rituals were performed with compliance of all guidelines including ensuring social distancing and capping the number of guests at 50.

Satish, the groom said, "Government has allowed weddings with up to 50 people in attendance but we decided to invite only 25 people to the ceremony".

Meanwhile, in the Honnali Honnali area of Davanagere, BJP MLA MP Renukacharya distributed masks to three newly-wed couples.

As per an earlier advisory issued by the State government more than 50 guests, no air conditioning, and the consumption of liquor and paan are among the guidelines to be followed for holding weddings in the state. Also, people aged above 65 and below 10 as well as pregnant women have been barred from participating in the event.

According to the advisory, sanitisers should be provided at the entry and other appropriate places at the venue. Also, thermal screening of all persons shall be conducted at the entry of the venue. The scanner should be held 3-15 cms away from a person's forehead.

Apart from this, the venue shall be "clean and hygienic," and a "nodal person shall be identified for overseeing the arrangements and coordination at the venue." Also, a list of attendees with contact details has to be maintained and all guests should have downloaded Aarogya Setu app.

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News Network
March 3,2020

Bengaluru, Mar 3: Bangalore Metropolitan Transport Corporation (BMTC) on Tuesday issued guidelines to its employees, as per advisory issued by World Health Organisation (WHO), to prevent the spread of coronavirus.

"The BMTC has provided general information on the topic and SOPs for daily life and operations to our employees as per advisory issued by the WHO. The corporation has started a communication campaign about Coronavirus indicating its characteristics, known ways of infection and recommended preventive measures. This information was distributed to the staff, drivers and conductors through Whatsapp, pamphlet and email," informed BMTC.

"The information was also distributed through pamphlets at bus stations. An awareness campaign is being taken up by sharing relevant information through social media," it added.

The BMTC further said that the circular was issued to create awareness among the cleaning personnel who work in depots.

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