Personnel unload an aircraft carrying the first batch of doses of the Sinopharm vaccine against the coronavirus disease (COVID-19) after it arrived at Baghdad International Airport, in Baghdad, Iraq March 2, 2021. REUTERS/Khalid al-Mousily REFILE - CORRECTING VACCINE

Personnel unload an aircraft carrying the first batch of doses of the Sinopharm vaccine against the coronavirus disease (COVID-19) after it arrived at Baghdad International Airport, in Baghdad, Iraq March 2, 2021. REUTERS/Khalid al-Mousily REFILE - CORRECTING VACCINE

An Iraqi flag is held aloft from an aircraft carrying the first batch of doses of the Sinopharm vaccine against the coronavirus disease (COVID-19) as it arrives at Baghdad International Airport, in Baghdad, Iraq March 2, 2021. REUTERS/Khalid al-Mousily REFILE - CORRECTING VACCINE

Personnel unload an aircraft carrying the first batch of doses of the Sinopharm vaccine against the coronavirus disease (COVID-19) after it arrived at Baghdad International Airport, in Baghdad, Iraq March 2, 2021. REUTERS/Khalid al-Mousily REFILE - CORRECTING VACCINE

Soldiers guard an aircraft carrying the first batch of doses of the Sinopharm vaccine against the coronavirus disease (COVID-19) after it arrived at Baghdad International Airport, in Baghdad, Iraq March 2, 2021. REUTERS/Khalid al-Mousily REFILE - CORRECTING VACCINE

Personnel unload an aircraft carrying the first batch of doses of the Sinopharm vaccine against the coronavirus disease (COVID-19) after it arrived at Baghdad International Airport, in Baghdad, Iraq March 2, 2021. REUTERS/Khalid al-Mousily REFILE - CORRECTING VACCINE

An aircraft carrying the first batch of doses of the Sinopharm vaccine against the coronavirus disease (COVID-19) arrives at Baghdad International Airport, in Baghdad, Iraq March 2, 2021. REUTERS/Khalid al-Mousily REFILE - CORRECTING VACCINE

A man waves the Iraqi flag from an aircraft carrying the first batch of doses of the Sinopharm vaccine against the coronavirus disease (COVID-19) after it arrived at Baghdad International Airport, in Baghdad, Iraq March 2, 2021. REUTERS/Khalid al-Mousily REFILE - CORRECTING VACCINE

Personnel unload an aircraft carrying the first batch of doses of the Sinopharm vaccine against the coronavirus disease (COVID-19) after it arrived at Baghdad International Airport, in Baghdad, Iraq March 2, 2021. REUTERS/Khalid al-Mousily REFILE - CORRECTING VACCINE

Personnel unload an aircraft carrying the first batch of doses of the Sinopharm vaccine against the coronavirus disease (COVID-19) after it arrived at Baghdad International Airport, in Baghdad, Iraq March 2, 2021. REUTERS/Khalid al-Mousily REFILE - CORRECTING VACCINE

Personnel unload an aircraft carrying the first batch of doses of the Sinopharm vaccine against the coronavirus disease (COVID-19) after it arrived at Baghdad International Airport, in Baghdad, Iraq March 2, 2021. REUTERS/Khalid al-Mousily REFILE - CORRECTING VACCINE

Personnel unload an aircraft carrying the first batch of doses of the Sinopharm vaccine against the coronavirus disease (COVID-19) after it arrives at Baghdad International Airport, in Baghdad, Iraq March 2, 2021. REUTERS/Khalid al-Mousily REFILE - CORRECTING VACCINE

An aircraft carrying the first batch of doses of the Sinopharm vaccine against the coronavirus disease (COVID-19) arrives at Baghdad International Airport, in Baghdad, Iraq March 2, 2021. REUTERS/Khalid al-Mousily REFILE - CORRECTING VACCINE

Foodstuff aid is prepared by the local charity Mona Relief to be haded out to beneficiaries at a camp for internally displaced people on the outskirts of Sanaa, Yemen March 1, 2021. REUTERS/Khaled Abdullah

A worker carries a sack of wheat flour provided by the local charity Mona Relief to beneficiaries at a camp for internally displaced people on the outskirts of Sanaa, Yemen March 1, 2021. REUTERS/Khaled Abdullah

A girl stands outside her family's hut at a camp for internally displaced people on the outskirts of Sanaa, Yemen March 1, 2021. REUTERS/Khaled Abdullah

A girl carries a canister of cooking oil she received from the local charity Mona Relief at a camp for internally displaced people on the outskirts of Sanaa, Yemen March 1, 2021. REUTERS/Khaled Abdullah

People carry foodstuff aid they received from the local charity Mona Relief at a camp for internally displaced people on the outskirts of Sanaa, Yemen March 1, 2021. REUTERS/Khaled Abdullah

A woman and a girl wait to receive foodstuff aid from the local charity Mona Relief at a camp for internally displaced people on the outskirts of Sanaa, Yemen March 1, 2021. REUTERS/Khaled Abdullah

A woman looks as she sits with her children at a camp for internally displaced people on the outskirts of Sanaa, Yemen March 1, 2021. REUTERS/Khaled Abdullah

People carry foodstuff aid they received from the local charity Mona Relief at a camp for internally displaced people on the outskirts of Sanaa, Yemen March 1, 2021. REUTERS/Khaled Abdullah

People carry foodstuff aid they received from the local charity Mona Relief at a camp for internally displaced people on the outskirts of Sanaa, Yemen March 1, 2021. REUTERS/Khaled Abdullah

A man carries a sack of wheat flour he received from the local charity Mona Relief at a camp for internally displaced people on the outskirts of Sanaa, Yemen March 1, 2021. REUTERS/Khaled Abdullah

Ahmad Farea chats with his daughters at their house in Sanaa, Yemen February 25, 2021. Picture taken February 25, 2021. REUTERS/Nusaibah Almuaalemi

Ahmad Farea sits with his daughters at their house in Sanaa, Yemen February 25, 2021. Picture taken February 25, 2021. REUTERS/Nusaibah Almuaalemi

Sons of Mona Muhammad play football outside their house in Sanaa, Yemen February 27, 2021. Picture taken February 27, 2021. REUTERS/Nusaibah Almuaalemi

Ahmad Farea and his family sit for a meal at their house in Sanaa, Yemen February 25, 2021. Picture taken February 25, 2021. REUTERS/Nusaibah Almuaalemi

Mona Muhammad prepares food at her house in Sanaa, Yemen February 27, 2021. Picture taken February 27, 2021. REUTERS/Nusaibah Almuaalemi

Daughters of Ahmad Farea play as their mother watches in their house in Sanaa, Yemen February 25, 2021. Picture taken February 25, 2021. REUTERS/Nusaibah Almuaalemi

Mona Muhammad and her sons sit for a meal at their house in Sanaa, Yemen February 27, 2021. Picture taken February 27, 2021. REUTERS/Nusaibah Almuaalemi

Ahmad Farea is seen with his daughters at their house in Sanaa, Yemen February 25, 2021. Picture taken February 25, 2021. REUTERS/Nusaibah Almuaalemi TPX IMAGES OF THE DAY

Ahmad Farea and his family sit for a meal at their house in Sanaa, Yemen February 25, 2021. Picture taken February 25, 2021. REUTERS/Nusaibah Almuaalemi

Sons of Mona Muhammad play football at the door of their house in Sanaa, Yemen February 27, 2021. Picture taken February 27, 2021. REUTERS/Nusaibah Almuaalemi

Ahmad Farea carries plastic bags of bread as he walks to his house in Sanaa, Yemen February 25, 2021. Picture taken February 25, 2021. REUTERS/Nusaibah Almuaalemi

Malnourished girl Ahmadiya Juaidi, 13, holds cups of supplemental nutrition shake she received at malnutrition treatment ward of al-Sabeen hospital in Sanaa, Yemen February 24, 2021. Picture taken February 24, 2021. REUTERS/Khaled Abdullah

Malnourished girl Ahmadiya Juaidi, 13, drinks a supplemental nutrition shake at malnutrition treatment ward of al-Sabeen hospital in Sanaa, Yemen February 24, 2021. Picture taken February 24, 2021. REUTERS/Khaled Abdullah

Malnourished girl Ahmadiya Juaidi, 13, waits to receive a supplemental nutrition shake at malnutrition treatment ward of al-Sabeen hospital in Sanaa, Yemen February 24, 2021. Picture taken February 24, 2021. REUTERS/Khaled Abdullah

A worker rolls a poster of Pope Francis and Iraq's top Shi'ite cleric, Ayatollah Ali al-Sistani, ahead of the Pope's planned visit to Iraq, at a shop in Najaf, Iraq, February 28, 2021. Reuters/Alaa Al-Marjani

Workers print a poster of Pope Francis and Iraq's top Shi'ite cleric, Ayatollah Ali al-Sistani, ahead of the Pope's planned visit to Iraq, at a shop in Najaf, Iraq, February 28, 2021. Reuters/Alaa Al-Marjani

A worker rolls a poster of Pope Francis and Iraq's top Shi'ite cleric, Ayatollah Ali al-Sistani, ahead of the Pope's planned visit to Iraq, at a shop in Najaf, Iraq, February 28, 2021. Reuters/Alaa Al-Marjani

A worker looks at a poster of Pope Francis and Iraq's top Shi'ite cleric, Ayatollah Ali al-Sistani ahead of the Pope's planned visit to Iraq, at a shop in Najaf, Iraq February 28, 2021. Reuters/Alaa Al-Marjani

People gather by the grave of Brigadier General Abdul-Ghani Shaalan, Commander of the Special Security Forces in Marib who was killed in recent fighting with Houthi fighters in Marib, Yemen February 28, 2021. REUTERS/Ali Owidha

A man walks at a graveyard in Marib, Yemen February 28, 2021. REUTERS/Ali Owidha

Soldiers ride on the back of a patrol truck during the burial of Brigadier General Abdul-Ghani Shaalan, Commander of the Special Security Forces in Marib who was killed in recent fighting with Houthi fighters in Marib, Yemen February 28, 2021. REUTERS/Ali Owidha

Soldiers recite prayers next to the grave of Brigadier General Abdul-Ghani Shaalan, Commander of the Special Security Forces in Marib who was killed in recent fighting with Houthi fighters, in Marib, Yemen February 28, 2021. REUTERS/Ali Owidha

Soldiers recite prayers next to the grave of Brigadier General Abdul-Ghani Shaalan, Commander of the Special Security Forces in Marib who was killed in recent fighting with Houthi fighters in Marib, Yemen February 28, 2021. REUTERS/Ali Owidha

A house roof damaged by an intercepted missile is seen in the aftermath of what Saudi-led coalition said was a thwarted Houthi missile attack, in Riyadh, Saudi Arabia, February 28, 2021. REUTERS/Ahmed Yosri

Mohamed Fahim inspects his house that was damaged by an intercepted missile in the aftermath of what Saudi-led coalition said was a thwarted Houthi missile attack, in Riyadh, Saudi Arabia, February 28, 2021. REUTERS/Ahmed Yosri

Mohamed Fahim inspects his house that was damaged by an intercepted missile in the aftermath of what Saudi-led coalition said was a thwarted Houthi missile attack, in Riyadh, Saudi Arabia, February 28, 2021. REUTERS/Ahmed Yosri

Mohamed Fahim inspects his house that was damaged by an intercepted missile in the aftermath of what Saudi-led coalition said was a thwarted Houthi missile attack, in Riyadh, Saudi Arabia, February 28, 2021. REUTERS/Ahmed Yosri REFILE - CORRECTING DATE

An Israeli-owned ship hit by an explosion in the strategic Gulf of Oman waterway is seen after arrival at a port in Dubai, United Arab Emirates February 28, 2021. REUTERS/Abdel Hadi Ramahi

An Israeli-owned ship hit by an explosion in the strategic Gulf of Oman waterway is seen after arrival at a port in Dubai, United Arab Emirates February 28, 2021. REUTERS/Abdel Hadi Ramahi

An Israeli-owned ship hit by an explosion in the strategic Gulf of Oman waterway is seen after arrival at a port in Dubai, United Arab Emirates February 28, 2021. REUTERS/Abdel Hadi Ramahi

A worker feeds a cat at the Ailuromania Cat Cafe, where customers can relax among purring felines or adopt a stray cat in Dubai, United Arab Emirates February 24, 2021. Picture taken February 24, 2021. REUTERS/Rula Rouhana

A cat is seen at the Ailuromania Cat Cafe, where customers can relax among purring felines or adopt a stray cat in Dubai, United Arab Emirates February 24, 2021. Picture taken February 24, 2021. REUTERS/Rula Rouhana

A cat sleeps at the Ailuromania Cat Cafe, where customers can relax among purring felines or adopt a stray cat in Dubai, United Arab Emirates February 24, 2021. Picture taken February 24, 2021. REUTERS/Rula Rouhana

A worker feeds a cat at the Ailuromania Cat Cafe, where customers can relax among purring felines or adopt a stray cat in Dubai, United Arab Emirates February 24, 2021. Picture taken February 24, 2021. REUTERS/Rula Rouhana

A cat is seen at the Ailuromania Cat Cafe, where customers can relax among purring felines or adopt a stray cat in Dubai, United Arab Emirates February 24, 2021. Picture taken February 24, 2021. REUTERS/Rula Rouhana

A cat is seen at the Ailuromania Cat Cafe, where customers can relax among purring felines or adopt a stray cat in Dubai, United Arab Emirates February 24, 2021. Picture taken February 24, 2021. REUTERS/Rula Rouhana

A cat is seen at the Ailuromania Cat Cafe, where customers can relax among purring felines or adopt a stray cat in Dubai, United Arab Emirates February 24, 2021. Picture taken February 24, 2021. REUTERS/Rula Rouhana