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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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

Kochi, Jan 16: Kicking up a debate, an influential Catholic Church in Kerala has said "Love Jihad is a reality" and alleged that scores of women from Christian community from the southern state were being lured into the trap of Islamic State and used in terror activities.

The synod of Syro-Malabar Church, an apex body of Catholic Bishops chaired by Cardinal George Alencherry, also accused the state police of not viewing the matter cautiously and taking timely action in 'Love Jihad' cases.

Denying the charges, the Popular Front of India (PFI) questioned the "timing" of the statement and urged the Church to withdraw it immediately "as it would only help create division amid growing unity among various sections of society against Hindutva Fascism."

The Viswa Hindu Parishad (VHP) welcomed the Church statement and called for a united fight against 'Love Jihad' in Kerala Society.

An official of the Kerala State Women's Commission refused to comment, considering the sensitivity involved in the matter.

There was no immediate reaction from the police and government as well.

"There are circumstances in which Christian girls are killed in the name of Love Jihad in Kerala," the Synod has alleged in a statement issued through Syro-Malabar Media Commission here on Tuesday night, referring to the attacks against Christians across the world.

The Synod has termed as "shocking" the killing of Christians in Nigeria on Christmas day.

It is a matter of concern that Love Jihad is gaining grounds in Kerala putting in danger its social peace and communal harmony, the Synod said.

"It is a reality that 'Love Jihad' is happening in Kerala in a planned manner targeting Christian girls," it said.

The Synod, referring to a police record, said out of 21 people who were recruited into Islamic State terror outfit, half of them were converted from Christian faith and it should be an eye opener for the community.

Noting that unofficial accounts say many girls were being used in terror activities through Love Jihad, the Synod said it was a serious matter and such accounts state that Love Jihad is not only "in the imagination".

The Synod, however, said it was not assessing the 'Love Jihad' as an issue affecting the friendship between religions and urged the government to treat it as one related to law and order and not as a religious matter.

The Church demanded speedy action against the culprits involved in the 'Love Jihad.'

It also called for efforts to sensitise parents and children about the dangers of Love Jihad.

The PFI, often being accused of playing key roles in alleged 'Love Jihad' cases in Kerala, claimed that the state police, after conducting a thorough probe, had earlier submitted a report in the Kerala High Court, stating that there was no cases of 'Love Jihad' in the state.

"The Church is raising such a baseless allegation at a time when the minorities including Muslims and Christians and the people of Hindu community are in a joint fight against the Fascist government at the Centre.

Their untimely statement would only help divert the people's attention from the key issues that society is facing at present", PFI State President Naziruddin Elamaram told PTI.

Urging the Bishops to immediately withdraw the statement, he said, "I don't know what is their interest in making such a statement at this juncture."

Not a single Muslim community is holding 'Love Jihad' to increase the number of Muslims here, Elamaram claimed.

He, however, said there were instance of inter-religious marriages in Kerala in which Muslim girls marrying Hindu and Christian boys and Hindu and Christian girls selecting partners from the religions of their choice.

Such marriages cannot be termed as 'Love Jihad', he said.

Asked about the Bishops' allegations that Christian girls are targeted and recruited to Islamic State terror outift, the PFI leader said not a single Muslim organisation in India have recognised the Islamic State and such recruitments should not be seen as part of a 'jihad' as doubts prevail in minds on who created the IS.

Former president of the VHP, SJR Kumar claimed that 'Love Jihad' exists in Kerala society.

He alleged that there were centres in Kerala to "convert Hindu and Christian girls who are being lured into the trap of love by youths with criminal backgrounds".

"We have brought this issue into the attention of the Kerala society much earlier. But nobody listened to us.

Now, we are happy that the Bishops have realised the threat of Love Jihad. It is the time of a joint fight against this menace," Kumar told PTI.

He also alleged that Muslim men trap Hindu and Christian women into marriage and forcing them to convert to Islam.

"The converted Hindu and Christian girls are being used in drug trafficking and terrorism," Kumar said.

Bengaluru, Jul 9: The total number of Covid-19 infections in Karnataka on Thursday breached the 30,000 mark as the state reported its biggest single-day spike of over 2,200 new cases and 17 related fatalities, taking the death toll to 486, the Health department said.

The day also saw a record 957 patients getting discharged after recovery, out of which 606 were from Bengaluru Urban.

Out of the 2,228 fresh cases reported on Thursday, a whopping 1,373 were from Bengaluru Urban alone.

The previous biggest single-day spike was recorded on July 8 with 2,062 cases.

As of July 9 evening, cumulatively 31,105 Covid-19 positive cases have been confirmed in the state, which includes 486 deaths and 12,833 discharges, the Health department said in its bulletin.

It said, out of 17,782 active cases, 17,325 patients are in isolation at designated hospitals and are stable, while 457 are in ICU.

"Death rate in Karnataka is 1.49 percent, while in Bengaluru is 1.28 percent, and our target is to bring it below 1 percent," Medical Education Minister K Sudhakar told reporters.

"The reason for spike in cases in Bengaluru and other places in recent days is because during the last four months of lockdown we had controlled it very well, but as we relaxed lockdown for economic activities we did not follow certain precautionary measures like distance among other things," he said.

The Minister also conceded that there were lapses on part of the government also in terms of tracing and tracking.

"It has to be improved especially in Bengaluru and we are taking steps in this regard."

Among the 17 dead seven were from Dharwad, two each from Hassan, Kalaburagi, Mysuru, and one each from Raichur, Uttara Kannada, Tumakuru and Davangere.

The deceased include 13 men and 4 women.

The dead are all either with a history of Severe Acute Respiratory Infection (SARI) or Influenza-like illness (ILI).

Out of 2,228 fresh cases today, contacts of the majority of the cases are still under tracing.

Among the districts where the new cases were reported, Bengaluru Urban accounted for 1,373, followed by Dakshina Kannada (167), Kalaburagi (85) and Dharwad (75).

Bengaluru urban district tops the list of positive cases, with a total of 13,882 infections, followed by Kalaburagi (1,901) and Dakshina Kannada 1,701.

Among discharges Bengaluru urban tops the list with total 2,834, followed by Kalabuagi (1,392) and Udupi (1,206).

A total of 7,79,209 samples were tested so far, out of which 20,028 were tested on Thursday alone.

So far 7,28,887 samples have been reported as negative, and of them 17,568 were reported negative today.