Will not allow Hindu temples in Pakistan to be destroyed: Hafiz Saeed

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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, Jul 21: Students who are Covid-19 positive but are asymptomatic will be allowed to write the Common Entrance Test (CET) scheduled on July 30 and 31 for entrance into professional courses in Karnataka.

According to the Standard Operating Procedure (SOP) issued by the Department of Health and Family Welfare for CET, space should be allotted for students who have tested positive. Such students will have to be transported to and from the exam centre in an ambulance.

According to the SOP issued yesterday, candidates with COVID-19 “shall provide a risk consent certificate for taking up the exam.” The SOP also says “they shall inform about their status to the authorities concerned in advance to make the necessary arrangements.”

Mangaluru, Jan 26: The Azizuddin Road of Mangaluru’s Bunder area, which had witnessed the brutal killing of two innocent passersby over a month ago, today witnessed the unfurling of Indian national flag by the kin of the police firing victim. 

49-year-old Abdul Jaleel Kandak, a father of two, and 23-year-old Nausheen Kudroli, were killed in an arbitrary and unwarranted police firing during a disturbance occurred due to police baton charge in the city on December 2019. 

A mixed feeling of patriotism and pain prevailed when a group of people gathered on the police firing spot to celebrate the 71st Republic Day of India. Family members of the victims were part of it.

It was Shifani, the daughter of Abdul Jaleel, who unfurled the flag and read out the preamble of the Indian constitution. 

“This is the spot where the constitution of the country was murdered,” said social activist Vidya Dinker, recalling the police firing. “The constitution is being murdered everyday in many states of India. We must regain the constitution and implement it everyday,” she added. 

Journalist Shahnaz M, DYFI leader Imtiyaz BK, SIO leader Talha, NWF leader Shahida Aslam and social activist Shabbir Ahmed were present among others.