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A health worker takes a break outside a field hospital in Mumbai, India. AP
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Health workers disinfect a train converted to a Covid-19 care centre after a surge in the number of positive coronavirus cases in Guwahati, India. AP
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A worker caring for Covid-19 patients takes a break in the ICU ward at the Holy Family hospital in New Delhi, India. Getty
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A worker attends to a patient in the emergency ward at the Holy Family hospital. Getty
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Covid-19 patients in the emergency ward at the Holy Family hospital. Getty
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Volunteers help with the funeral pyres at a cremation ground in New Delhi. The capital's crematoriums and burial grounds have been overwhelmed during the second wave of the pandemic. AFP
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A Covid-19 patient breathes with the help of oxygen provided by a gurdwara, a place of worship for Sikhs. The tent along the roadside in Ghaziabad is helping people who need oxygen support. AFP
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Kashmiris mourn over the coffin of a relative who died of Covid-19 at a graveyard on the outskirts of Srinagar. EPA
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Urns containing ashes of dead people, including those who died of Covid-19. The urns are kept at a crematorium in New Delhi and will be immersed after the lockdown. Reuters
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A distraught relative of a coronavirus victim at a cremation ground on the banks of the River Ganges at Garhmukteshwar in the northern state of Uttar Pradesh. Reuters
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Masked customers line up outside a pharmacy to buy medicines in Guwahati. AP
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A health worker takes a nasal swab sample to test for Covid-19 as others wait their turn outside a field hospital in Mumbai. AP
![](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/2GEEJ4MJFJW7G4W7OBX3NHUEAY.jpg?smart=true&auth=392f9be373e44f39c8da9e5ce947a1835688f4932f67c6075c327f3f74a74c7c&width=400&height=225)
A health worker takes a break outside a field hospital in Mumbai, India. AP
![](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/XIFYFGL2WTEN263T72JHSZB73A.jpg?smart=true&auth=b3fc39d094eefbd31d5a6cabb811b6964587608230912e42f7d5647355d2f459&width=400&height=225)
Health workers disinfect a train converted to a Covid-19 care centre after a surge in the number of positive coronavirus cases in Guwahati, India. AP
![](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/CNU7FI6ARKVF233DW2K3HSPU24.jpg?smart=true&auth=2e745774b918f3889749fbf89242ecda21136b7b1090907dbbe4a9d66dd352ad&width=400&height=225)
A worker caring for Covid-19 patients takes a break in the ICU ward at the Holy Family hospital in New Delhi, India. Getty
![](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/MARUWV52735BLIOTVTDWWWQZRY.jpg?smart=true&auth=53acd5416dc0b4507c038166dfaff124041eaa96a1a9180cd4ea753b9de758ba&width=400&height=225)
A worker attends to a patient in the emergency ward at the Holy Family hospital. Getty
![](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/BYYMBMCGZHITGOUXYQPWQTHANI.jpg?smart=true&auth=776a2cd4dc92779a528641c12dcd75acbb755e7bc1f95360d400cca374f64a27&width=400&height=225)
Covid-19 patients in the emergency ward at the Holy Family hospital. Getty
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Volunteers help with the funeral pyres at a cremation ground in New Delhi. The capital's crematoriums and burial grounds have been overwhelmed during the second wave of the pandemic. AFP
![](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/2JGGL4FGNLWJMTV4RNYYNT25WU.jpg?smart=true&auth=ff7b267131eea04449f28981253d1d174006deffa263593390a5cab6041014ee&width=400&height=225)
A Covid-19 patient breathes with the help of oxygen provided by a gurdwara, a place of worship for Sikhs. The tent along the roadside in Ghaziabad is helping people who need oxygen support. AFP
![](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/RCX44GF6RXEZ33AMVWXC3VFX64.jpg?smart=true&auth=75c057fe0dee564cc29aa9efc5074b703c9214b488cace09bfe5fbfa0645d588&width=400&height=225)
Kashmiris mourn over the coffin of a relative who died of Covid-19 at a graveyard on the outskirts of Srinagar. EPA
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Urns containing ashes of dead people, including those who died of Covid-19. The urns are kept at a crematorium in New Delhi and will be immersed after the lockdown. Reuters
![](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/WFOLM5JQA5LJSW5FJCMMMEHVRM.jpg?smart=true&auth=d67995f2c82ee1cfaa5707d234d0e677e1c27dd5ba34f9fba4b81e62085658dd&width=400&height=225)
A distraught relative of a coronavirus victim at a cremation ground on the banks of the River Ganges at Garhmukteshwar in the northern state of Uttar Pradesh. Reuters
![](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/Z5VUSFCNH57FFWY5CNLVUI6C64.jpg?smart=true&auth=69f67818cd4d820cb390b4572c66439e8e9fd09e8842236d9b97caf71df4be01&width=400&height=225)
Masked customers line up outside a pharmacy to buy medicines in Guwahati. AP
![](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/5NJEWSVGWFQNMJNMTSBSVAV22A.jpg?smart=true&auth=89511242766ff0c7cfccde75eda441c8fcc17e45032471a1079f73f2103a9fac&width=400&height=225)
A health worker takes a nasal swab sample to test for Covid-19 as others wait their turn outside a field hospital in Mumbai. AP
![](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/2GEEJ4MJFJW7G4W7OBX3NHUEAY.jpg?smart=true&auth=392f9be373e44f39c8da9e5ce947a1835688f4932f67c6075c327f3f74a74c7c&width=400&height=225)
A health worker takes a break outside a field hospital in Mumbai, India. AP
Why are Covid-19 variants more dangerous than the original strain?
UAE health authorities say new variants pose a serious risk to unvaccinated people as they are more lethal and contagious
![Gillian Duncan](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/https%3A%2F%2Fs3.amazonaws.com%2Farc-authors%2Fthenational%2F736ebb26-e270-44c5-96a2-80452d783888.png?smart=true&auth=6b2c4dc0614f332daaa4e848c41f090496fd16da3ccccaa940132372e6a74710&width=70&height=70)
Gillian Duncan
21 June, 2021
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