Kuwait: ‘Diwali Dhamaka – 2019’ marks 10th anniversary of Dhoom Dance Group

Mangaluru, May 27: The Dakshina Kannada PU College Principals' Association on Wednesday appealed to the authorities to postpone the evaluation of PUC II answer scripts, as the Novel Coronavirus was still active and there was all possibility of the infection spreading.

Speaking to reporters here, Association President Umesh Karkera said, ''It is our duty to evaluate the answer scripts. But amid the fear of COVID-19 and lockdown, evaluators are not able to reach the valuation Centre to take up the work.

''The department of pre-university education has asked the Deputy Chief Examiners and the Assistant Examiners to reach the venue on May 27 and 29, respectively, to take up the evaluation work.

Thiruvananthapuram, Feb 6: The Kerala government on Wednesday said three foreign nationals were among the 2,528 people under observation in the state for the novel coronavirus infection and no new cases have been reported.

At least 93 people with minor symptoms of the virus have been lodged in isolation wards of various hospitals, state Health Minister KK Shailaja told reporters in Thiruvananthapuram.

India's three positive cases for the virus has been from the state's three districts of Thrissur, Alappuzha and Kasaragod.

All the three are students of China's Wuhan university, the epicentre of the virus.

"No new cases of coronavirus has been detected in the state today. At least 2,435 are under observation at home while 93 are in isolation wards at various hospital across the state," Mr Shailaja said.

The minister also said two foreigners have been quarantined in Ernakulam district and one foreign national at Thiruvananthapuram.

"The foreigner in Thiruvananthapuram has been kept at general hospital but not because he was showing symptoms but for observation as he travelled from China," an official said.

The health status of the three patients, who had tested positive for the virus, "remains satisfactory", the minister said.

After three cases were reported, the Left Democratic Front (LDF) government had declared the epidemic as a "state calamity" on Monday.

The health department has issued advisories to the education, tourism and the animal husbandry departments on taking precautions.

"The students, teachers, other staff members residing with families of Wuhan/China returnees who are already in home isolation should not attend classes...," an advisory issued to the education department read.

Rajan Khobragade, Principal Secretary (Health), said the health department has directed the District collectors to hold a meeting with the religious leaders of the district to create awareness during prayer meetings.

"We have directed district collectors to meet religious leaders and talk to them about the seriousness of the situation and create awareness among them and their followers on how to contain the spread of virus," the minister said.

Mr Shailaja also said the department got messages from some Kerala students studying in China, who returned to the state after the virus outbreak, that their Universities had asked them to return and attend classes.

"We have got some messages from the students that they were being recalled by the universities in China. We discussed the matter and it was decided that the centre will contact such universities and convey the message that it was not possible to send the students back to China until the epidemic was under control," the minister said.

Mr Shailaja also said even though there were no positive cases for the second consecutive day on Wednesday, the state needs to remain vigilant and reiterated the 28 days quarantine period for those returning from China.

Of the 2,528 people under observation, the maximum number is from Malappuram (383), followed by Ernakulam (333), Kozhikode (306) and Thrissur (241).

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