Bengaluru's first female rowdy-sheeter Muniyamma is now Sri Rama Sene women’s unit chief

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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

The Karnataka BJP, which faced action on Twitter earlier this month over incendiary tweets, this time has passed the blame of Sangh Parivar sponsored Delhi violence to the victims.

In an insensitive tweet on Friday, it dubbed the protests against the notorious Citizenship Amendment Act (CAA) as "fake" and added that the violence that followed was "the most well-planned assault on the Idea of India," in an apparent attempt to portray the victims as villains.

The handle, notorious for tweets targeting Muslims, blamed the clashes that erupted in Delhi between people demonstrating for and against the CAA on "so called 'Peacefuls'" - a known right-wing slur for Muslims.

ZERO - Number of Indians who lost their Citizenship due to the #CAA.

40+ - Number of Indians who lost their lives due to the #CAARiots.

The fake protests against CAA and subsequent riots by the so called Peacefuls are the most well planned assault on the "Idea of India."

— BJP Karnataka (@BJP4Karnataka) February 28, 2020

Many people on social media called out the tweet for misleading people and covering up the role of Delhi BJP leader Kapil Mishra's provocative speech for triggering the violence or the failure of the Delhi Police, which reports to the former BJP chief and Union Home Minister Amit Shah, in controlling the riots.

Earlier this month, the Karnataka BJP had tweeted a video of Muslim women standing in queue to vote in the Delhi elections, showing their voter ID cards, with the snarky caption: "Keep the documents safe, you will need to show them again during NPR (National Population Register) exercise."

Soon after, the party unit's Twitter handle was blocked by the social media platform for 24 hours after many accused it of encouraging Islamophobia.

NPR has been widely criticised by opposition parties as a precursor to the government's planned NRC or National Register of Citizens which intends to make Indians prove their citizenship with documents that many poor or illiterate do not possess.

Many fear that combined with the already imposed CAA - which promises citizenship to only non-Muslim refugees from Pakistan, Afghanistan and Bangladesh - the NRC can be used to make millions of Muslims stateless.

The government has denied the allegation and said the CAA only intends to help those who have faced religious persecution. In recent weeks, it has gone back on its rhetoric on the NRC which was announced by Amit Shah in parliament as "it will certainly happen".

The CAA, which was cleared by parliament in December, has triggered deadly protests in the country which left at least 25 dead till Sunday. Since then, at least 42 more people have been killed as large-scale violence erupted in northeast Delhi and hundreds of homes and shops have been burned to the ground.