Muthalik, others booked for staging protest at Bababudan Dargah

Bengaluru, Feb 25: Infosys is all set to announce a cyber defence centre in Indianapolis to complement its technology and innovation centre inaugurated early last year.

This will be Infosys' seventh global cyber defence centre. According to its recent cybersecurity report titled 'Assuring Digital Trust,' 83 per cent of executives view cybersecurity as critical, yet 67 per cent are still struggling to have security embedded.

The cyber defence centre will provide end-to-end, real-time, 24x7 cyber security monitoring and protection services to support and guide American businesses in their digital transformation journey, it said.

The facility is dedicated and organised to prevent, detect, assess and respond to cybersecurity threats and breaches.

Client environment will be monitored round the clock, adopting a follow-the-sun model to deliver services like 24x7 security monitoring, management and remediation, threat hunting, security analytics, incident discovery and response, compliance reporting and malware analysis.

Vishal Salvi, Chief Information Security Officer and Head of Cyber Security Practice at Infosys, said the cyber defence centre is staffed with expert security analysts with niche skills around threat research and intelligence gathering to deliver best-in-class services to customers.

"Additionally, advanced data analytics and machine learning models are deployed to detect zero-day threats by unknown threat actors. This supports our commitment to helping our customers build a resilient cybersecurity programme that operates at scale while increasing operational efficiency and reducing costs," he said in a statement.

The current physical distancing guidelines provided by the World Health Organisation (WHO) and by the US Centers for Disease Control and Prevention (CDC) may not be adequate to curb the coronavirus spread, according to a research which says the gas cloud from a cough or sneeze may help virus particles travel up to 8 metres. The research, published in the Journal of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.

Study author, MIT associate professor Lydia Bourouiba, warned that droplets of all sizes can travel 23 to 27 feet, or 7-8 metres, carrying the pathogen.

According to Bourouiba, the current guidelines are based on "arbitrary" assumptions of droplet size, "overly simplified", and "may limit the effectiveness of the proposed interventions" against the deadly pandemic.

 She explained that the old guidelines assume droplets to be one of two categories, small or large, taking short-range semi-ballistic trajectories when a person exhales, coughs, or sneezes.

However based on more recent discoveries, the MIT scientist said, sneezes and coughs are made of a puff cloud that carries ambient air, transporting within it clusters of droplets of a wide range of sizes.

Bourouiba warned that this puff cloud, with ambient air entrapped in it, can offer the droplets moisture and warmth that can prevent it from evaporation in the outer environment.

"The locally moist and warm atmosphere within the turbulent gas cloud allows the contained droplets to evade evaporation for much longer than occurs with isolated droplets," she said.

"Under these conditions, the lifetime of a droplet could be considerably extended by a factor of up to 1000, from a fraction of a second to minutes," the researcher explained in the study.

The MIT scientist, who has researched the dynamics of coughs and sneezes for years, added that these droplets settle along the trajectory of a cough or sneeze contaminating surfaces, with their residues staying suspended in the air for hours.

"Even when maximum containment policies were enforced, the rapid international spread of COVID-19 suggests that using arbitrary droplet size cutoffs may not accurately reflect what actually occurs with respiratory emissions, possibly contributing to the ineffectiveness of some procedures used to limit the spread of respiratory disease," Bourouiba wrote in the study

Bengaluru, Apr 16: The Union Health Ministry on Wednesday has identified eight districts from Karnataka as COVID-19 hotspots.

Districts that have reported a higher number of cases are classified as hotspots, the districts where cases have been reported as non-hotspots, and green zones where no cases have been reported.

Bangalore Urban, Mysuru, Belagavi, Dakshina Kannada, Bidar, Kalaburgi, Bagalokote and Dharwad have been identified as Covid-19 hotspots by Union Health Ministry, tweeted the state health department on Wednesday.