With highest single-day spike of 26,506 cases, India's COVID-19 tally reaches 7,93,802

Raipur, Jan 9: An outbreak of bird flu has been reported from a state-run poultry farm in Chhattisgarh's Korea district, prompting the authorities to cull over 15,000 birds and step up vigil on poultry birds within 10 km radius of the affected area, officials said on Thursday.

So far, 15,426 chickens and quails have been culled and 30,000 eggs destroyed after the highly contagious H5N1 virus was detected among birds at the poultry farm and hatchery in Baikunthpur town, located around 300 km from here, they said.

There has been no case of infection in humans so far due to the outbreak of avian influenza, they said.

"After some chickens and quails were found dead on December 7 last year in the farm, their samples were collected and sent to local laboratories for testing," Dr R S Baghel, deputy director, veterinary department, Korea, told news agency.

When the disease was not properly detected, samples were further sent to Jabalpur in Madhya Pradesh where veterinarians suggested symptoms of chronic respiratory disease, following which their line of treatment was followed.

"Despite the treatment, the abnormal deaths of birds continued," Baghel said.

Later, the samples were sent to Bhopal-based National Institute of High-Security Animal Diseases where tests were found positive for the H5N1 virus on December 23, he said.

"Immediately after getting reports of bird flu, we took permission from the Korea district administration, as per the standard procedure, and culled all 15,426 birds (chickens and quails) and destroyed 30,000 eggs in the farm and its adjoining areas," the official said.

Of the total culled birds, nearly 641 chickens were being reared by locals within one km radius of the farm. The locals were given compensation for the culling of their birds, he said.

"We have completed the culling process and sealed the farm. After sanitising the area in 10 km of its radius, we submitted a report to the state's directorate of veterinary services on Wednesday," Baghel said.

"No human has been affected due to the outbreak and the situation is under control. We are waiting for further directives from the higher authorities," he said.

The official said for the next three months, they will be conducting surveillance in 10 km radius of the affected area during which blood samples of birds will be regularly sent to Bhopal for testing.

"We will continue our observation for next three months," he added.

Meanwhile, state veterinary services director C R Prasanna said, "No human has so far been affected due to avian influenza and workers at the poultry farm at Baikunthpur have been given medicines as a precautionary measure."

Nearly 40 villages fall within the purview of 10 km radius of the affected area from where random sampling of poultry birds will be done for next three months to check whether they are infected with avian influenza, he said.

"Necessary steps are being taken to prevent bird flu from spreading to other areas," he added.

London/Milan, Jun 2: World Health Organization experts and a range of other scientists said on Monday there was no evidence to support an assertion by a high profile Italian doctor that the coronavirus causing the COVID-19 pandemic has been losing potency.

Professor Alberto Zangrillo, head of intensive care at Italy's San Raffaele Hospital in Lombardy, which bore the brunt of Italy's COVID-19 epidemic, on Sunday told state television that the new coronavirus "clinically no longer exists".

But WHO epidemiologist Maria Van Kerkhove, as well as several other experts on viruses and infectious diseases, said Zangrillo's comments were not supported by scientific evidence.

There is no data to show the new coronavirus is changing significantly, either in its form of transmission or in the severity of the disease it causes, they said.

"In terms of transmissibility, that has not changed, in terms of severity, that has not changed," Van Kerkhove told reporters.

It is not unusual for viruses to mutate and adapt as they spread, and the debate on Monday highlights how scientists are monitoring and tracking the new virus. The COVID-19 pandemic has so far killed more than 370,000 people and infected more than 6 million.

Martin Hibberd, a professor of emerging infectious disease at the London School of Hygiene & Tropical Medicine, said major studies looking at genetic changes in the SARS-CoV-2 virus that causes COVID-19 did not support the idea that it was becoming less potent, or weakening in any way.

"With data from more than 35,000 whole virus genomes, there is currently no evidence that there is any significant difference relating to severity," he said in an emailed comment.

Zangrillo, well known in Italy as the personal doctor of former Prime Minister Silvio Berlusconi, said his comments were backed up by a study conducted by a fellow scientist, Massimo Clementi, which Zangrillo said would be published next week.

Zangrillo told Reuters: "We have never said that the virus has changed, we said that the interaction between the virus and the host has definitely changed."

He said this could be due either to different characteristics of the virus, which he said they had not yet identified, or different characteristics in those infected.

The study by Clementi, who is director of the microbiology and virology laboratory of San Raffaele, compared virus samples from COVID-19 patients at the Milan-based hospital in March with samples from patients with the disease in May.

"The result was unambiguous: an extremely significant difference between the viral load of patients admitted in March compared to" those admitted last month, Zangrillo said.

Oscar MacLean, an expert at the University of Glasgow's Centre for Virus Research, said suggestions that the virus was weakening were "not supported by anything in the scientific literature and also seem fairly implausible on genetic grounds."

New Delhi, Jul 23: With the highest single-day spike of 45,720 cases, India's coronavirus count crossed 12 lakh mark on Thursday.

The Union Ministry of Health and Family Welfare informed that 1,129 deaths were recorded in the last 24 hours.

The total number of coronavirus cases stand at 12,38,635 including 4,26,167 active cases, 7,82,606 cured/discharged/migrated. The cumulative toll has reached 29,861 deaths.

Maharashtra has reported 3,37,607 cases, highest in the country followed by Tamil Nadu with 1,86,492 cases. Delhi coronavirus count has reached 1,26,323 cases.

According to the Indian Council of Medical Research (ICMR), 1,50,75,369 samples were tested till July 22 out of which 3,50,823 samples were tested yesterday.