Vidya Dinker seeks Home Minister’s intervention to stop saffronists’ Lie Jihad in coastal Karnataka

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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

Thiruvananthapuram, Mar 20: One more person tested positive for coronavirus on Thursday, taking the total number of cases to 25, as the Left government announced a Rs 20,000 crore financial package to tide over the present crisis being faced by the southern state in the wake of the virus outbreak.

The multi-crore special package includes Rs 500 crore health package, Rs 2,000 crore loans and free ration.

The man who tested positive had returned from Dubai and hailed from the northern Kasaragod district, Chief Minister Pinarayi Vijayan told reporters after a COVID-19 review meeting.

He said 65 people were hospitalised on Thursday.

"At least 31,173 people are under surveillance, of whom 237 are in observation in hospitals across the state" he said.

Detailing the financial package, Vijayan said loans worth Rs 2,000 crore would be made available to needy families through all-women network 'Kudumbashree' during April-May.

Rural employment guarantee programmes worth Rs 1,000 crore each will be implemented in April-May, he said.

Social security pension of Rs 1,320 crore, to be given in April, would be distributed this month, he said, adding that 50 lakh people are benefited through the pension scheme.

Those belonging to the below poverty line (BPL) and Anthyodaya, who are not receiving social security pension, would be given Rs 1,000 each, for which Rs 100 crore would be earmarked.

Cutting across APL and BPL families, 10 kg free ration would be given and Rs 100 crore would be set apart for the purpose, he said.

A string of 1,000 low-cost hotels, providing food at Rs 20, would be opened across the state next month, the chief minister added.

The 'fitness' charges of autorickshaws and taxis and one month tax of stage and contract carriages would be waived, Vijayan said.

Kasaragod, Jul 8: The meeting of Kasaragod district-level corona control core committee has resolved to make pass mandatory for vehicles to bring vegetables and fruits to Kasaragod from Dakshina Kannada and other parts of Karnataka.

Pass will be issued by RTO. Employees, including the driver of the vehicle, must visit the nearest primary health facility once in seven days and undergo a health check and submit a medical officer's certificate.

District Collector Dr D Sajith Babu, who presided over the meeting, said that only those vegetable and fruit vehicles that produce medical officer's certificate and RTO's passes will be allowed to cross the border.

Meeting, the RTO has decided to convene an emergency meeting of vegetable and fruit merchants.