Delta variant now reported in 85 countries globally, expected to become dominant lineage: WHO
United Nations: The Delta variant, the significantly more transmissible strain of COVID-19, is expected to become a dominant lineage if current trends continue, the WHO has warned after it was reported in 85 countries and continues to be detected in more places around the world.
The COVID-19 Weekly Epidemiological Update released on June 22 by the World Health Organisation (WHO) said that globally, the variant Alpha has been reported in 170 countries, territories or areas, Beta in 119 countries, Gamma in 71 countries and Delta in 85 countries.
Delta, now reported in 85 countries globally, continues to be reported in new countries across all WHO Regions, 11 of which were newly reported in the past two weeks, the update said.
WHO said the four current 'Variants of Concern' being monitored closely Alpha, Beta, Gamma and Delta - are widespread and have been detected in all WHO regions.
The Delta variant is significantly more transmissible than Alpha variant, and is expected to become a dominant lineage if current trends continue.
The update said that India reported the highest numbers of new COVID19 cases, 441,976 over the past week (June 14-20, 2021), a 30 per cent decrease as compared to the previous week. The highest numbers of new deaths were reported from India (16,329 new deaths; 1.2 new deaths per 100,000; a 31 per cent decrease).
The South-East Asia Region reported over 600,000 new cases and over 19,000 new deaths, a 21 per cent and a 26 per cent decrease respectively compared to the previous week.
Decreasing trends in weekly case and death incidence in the Region are predominantly associated with decreases reported in India, the update said.
WHO noted that since the last detailed update on June 8, new evidence has been published on the phenotypic characteristics of the Delta variant. A study from Singapore showed that infection with Delta variant was associated with higher odds of oxygen requirement, intensive care unit (ICU) admission, or death, it said.
Further, a study in Japan "estimating the relative instantaneous reproductive number (a measure of transmission at a specific point in time) showed that the Delta variant was associated with greater transmissibility" when compared to the Alpha variant.
When compared with the variants circulating in Japan before December 2020, the relative instantaneous reproduction number for Alpha was estimated to be at 1.56 and for Delta 1.78. Overall, this study showed Delta was associated with 1.23 times higher transmissibility than Alpha, the update said.
The update also took note of two studies that have provided evidence of the effectiveness of Pfizer BioNTech-Comirnaty and AstraZeneca-Vaxzevria vaccines against the Delta variant. One study reports on the effectiveness of these vaccines against severe disease (hospitalisation) due to Delta among persons over the age of 16 years in the United Kingdom.
Vaccine effectiveness estimates against hospitalisation due to Delta and Alpha variants over 14 days post second dose was estimated to be 96 per cent and 95 per cent respectively for Pfizer BioNTech- Comirnaty and 92 per cent and 86 per cent respectively, for AstraZeneca-Vaxzevria.
Single dose effectiveness against hospitalisation over 21 days after immunisation remained high for Pfizer BioNTech-Comirnaty at 94 per cent against Delta and 83 per cent against Alpha. Effectiveness of one dose of AstraZeneca-Vaxzevria against hospitalization was similar for Delta and Alpha variants.
A second study from Scotland found that two doses of Pfizer BioNTech-Comirnaty were 83 per cent and 79 per cent effective against symptomatic disease and infection due to Delta, respectively, over 14 days after receipt of second dose in persons 15 years and older.
Together, these studies suggest moderately reduced VE at preventing symptomatic disease and infection due to the Delta variant as compared to Alpha...The studies also provide further evidence of the importance of two doses of both Pfizer BioNTech-Comirnaty and AstraZeneca-Vaxzevria in preventing hospitalisation, symptomatic disease and infection due to both Delta and Alpha variants, the update said.
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Chamoli hydropower tunnel train collision: 88 injured, magisterial probe ordered
Gopeshwar/Dehradun (PTI): Chamoli District Magistrate Gaurav Kumar on Wednesday ordered a magisterial inquiry into the collision between two loco trains inside the Pipalkoti tunnel of the under-construction Vishnugad-Pipalkoti hydropower project, which left 88 people injured.
Earlier in the day, Kumar said that the accident occurred around 8.30 pm on Tuesday at the TBM (Tunnel Boring Machine) site inside the tunnel being built by THDC (India).
A loco train carrying workers for tunnel excavation during the night shift was about two kilometres inside the tunnel when another loco train coming from the opposite direction lost control and collided with it.
One of the trains had workers and officials on board, while the other carried material.
Upon receiving information about the collision, Uttarakhand Chief Minister Pushkar Singh Dhami ordered proper treatment for the injured. He spoke to the DM over the phone and instructed him to ensure that all the injured receive the best possible medical facilities.
DM Kumar and Superintendent of Police Surjit Singh Panwar met the injured at the Gopeshwar District Hospital.
Kumar said 109 people were on board the loco train at the time of the accident, most of them labourers. None of the injured was serious, he said.
He said that 88 of them were injured, although none of them are in serious condition. They said that 84 workers were discharged after receiving first aid, while four are still hospitalized.
DM Kumar and SP Panwar also inspected the project site and sought detailed information about the incident from the project officials.
They instructed them to strictly implement all necessary safety standards to prevent a recurrence of such an incident in the future.
After inspection, the DM issued orders for a magisterial inquiry into the accident caused by the collision of the loco trains.
Meanwhile, the Railways said the trains involved in the collision had no connection with it.
"It is clarified that this unfortunate incident occurred in Uttarakhand's Chamoli district, involving a trolley used in the local transportation system during the construction of a hydroelectric project tunnel. The train referred to in the news reports is not an Indian Railways train, but a transportation system being used locally by the project team," the government entity said in a statement.
According to officials, rail-like vehicles are used to transport workers, employees, and materials for construction work inside the tunnel.
The project, being built between Helang and Pipalkoti on the Alaknanda River, will generate 444 megawatts of electricity through four turbines. The project is targeted for completion by next year.
