Bengaluru on high alert after Gauri Lankesh murder; crime caught on CCTV?

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."

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.

Bengaluru, Jun 29: Bengaluru continued to see a sharp spike in covid- 19 cases as 738 more people tested positive on Monday that took the city's tally to 4052 of which 3427 is active.

The surge in Bengaluru pushed up the number of positive cases to 1105 across Karnataka. The total number of cases in Karnataka now stands at 14,295 of which 6382 are active.

The death toll stood at 230 as 19 more people died in the 24 hours till 5 pm on Monday.

Karnataka, particularly Bengaluru, has seen a sharp rise in cases over the last two weeks indicating the possibility of community transmission and further rise in cases.

Estimates by government authorities project that Karnataka will have around 25,000 cases by mid-August.

R.Ashok, the revenue minister incharge of covid- 19 in Bengaluru on Monday told doctors that they would have to dedicate another six months to contain the virus indicating that authorities were expecting the case count to rise in subsequent days and months.

The city reported over 3,200 cases since 19 June as against 844 cases between 8 March and 18 June.

There are around 500 containment zones in Bengaluru that is likely to have an impact of business and activities in the state's growth capital and its efforts to revive the economy.

The state government on Monday held meetings with private hospitals to increase the number of beds available for treatment of covid- 19.

The number of people in intensive careunits (ICU) jumped to 268.