Students wearing protective face masks wait for their class to start as the public schools officially reopen, amid the coronavirus disease (COVID-19) pandemic, in San Salvador, El Salvador April 6, 2021. REUTERS/Jose Cabezas

A student wearing a protective face mask has her temperature taken upon arriving to school, as the public schools officially reopen, amid the coronavirus disease (COVID-19) pandemic, in San Salvador, El Salvador April 6, 2021. REUTERS/Jose Cabezas

A student wearing a protective face mask arrives to school, as the public schools officially reopen, amid the coronavirus disease (COVID-19) pandemic, in San Salvador, El Salvador April 6, 2021. REUTERS/Jose Cabezas

A student wearing a protective face mask arrives to his school, as the public schools officially reopen, amid the coronavirus disease (COVID-19) pandemic, in San Salvador, El Salvador April 6, 2021. REUTERS/Jose Cabezas

Students wearing protective face masks stand adhering to social distancing guidelines, while waiting for their class to start, as the public schools officially reopen, amid the coronavirus disease (COVID-19) pandemic, in San Salvador, El Salvador April 6, 2021. REUTERS/Jose Cabezas

A teacher hugs a student during class as the public schools officially reopen, amid the coronavirus disease (COVID-19) pandemic, in San Salvador, El Salvador April 6, 2021. REUTERS/Jose Cabezas

Students wearing protective face masks are seated adhering to social distancing guidelines while attending a class, as the public schools officially reopen, amid the coronavirus disease (COVID-19) pandemic, in San Salvador, El Salvador April 6, 2021. REUTERS/Jose Cabezas

A student wearing a protective face mask is seated adhering to social distancing guidelines while attending a class, as the public schools officially reopen, amid the coronavirus disease (COVID-19) pandemic, in San Salvador, El Salvador April 6, 2021. REUTERS/Jose Cabezas

A student wearing a protective face mask arrives to attend class, as the public schools officially reopen, amid the coronavirus disease (COVID-19) pandemic, in San Salvador, El Salvador April 6, 2021. REUTERS/Jose Cabezas

A student walks to class following a social distancing marker, as the public schools officially reopen, amid the coronavirus disease (COVID-19) pandemic, in San Salvador, El Salvador April 6, 2021. REUTERS/Jose Cabezas

A student wearing a protective face mask washes his hands, as the public schools officially reopen, amid the coronavirus disease (COVID-19) pandemic, in San Salvador, El Salvador April 6, 2021. REUTERS/Jose Cabezas

Students wearing protective face masks are seated adhering to social distancing guidelines while attending a class, as the public schools officially reopen, amid of the coronavirus disease (COVID-19) pandemic, in San Salvador, El Salvador April 6, 2021. REUTERS/Jose Cabezas

Students wearing protective face masks are seated adhering to social distancing guidelines while attending a class, as the public schools officially reopen, amid of the coronavirus disease (COVID-19) pandemic, in San Salvador, El Salvador April 6, 2021. REUTERS/Jose Cabezas

Students wear face masks and adhere to social distancing guidelines while attending a class, as the public schools officially reopen, amid of the coronavirus disease (COVID-19) pandemic, in San Salvador, El Salvador April 6, 2021. REUTERS/Jose Cabezas

Students wearing protective face masks play together during recess as the public schools officially reopen, amid of the coronavirus disease (COVID-19) pandemic, in San Salvador, El Salvador April 6, 2021. REUTERS/Jose Cabezas

Students wear face masks during recess as the public schools officially reopen, amid of the coronavirus disease (COVID-19) pandemic, in San Salvador, El Salvador April 6, 2021. REUTERS/Jose Cabezas

Students wearing protective face masks sit together during recess as the public schools officially reopen, amid of the coronavirus disease (COVID-19) pandemic, in San Salvador, El Salvador April 6, 2021. REUTERS/Jose Cabezas

A man casts his vote during the municipal and parliamentary elections at a polling station in San Salvador, El Salvador, February 28, 2021. REUTERS/Jose Cabezas

Election workers set up a polling station during the municipal and parliamentary elections, in San Salvador, El Salvador, February 28, 2021. REUTERS/Jose Cabezas

Police oficers stand guard next to a truck containing election material during the municipal and parliamentary elections, in San Salvador, El Salvador, February 28, 2021. REUTERS/Jose Cabezas REFILE - QUALITY REPEAT

An election worker is seen during the municipal and parliamentary elections at a polling station in San Salvador, El Salvador, February 28, 2021. REUTERS/Jose Cabezas

An man has his finger marked as he casts his vote during the municipal and parliamentary elections at a polling station in San Salvador, El Salvador, February 28, 2021. REUTERS/Jose Cabezas

An election worker holds a ballot during the municipal and parliamentary elections at a polling station in San Salvador, El Salvador, February 28, 2021. REUTERS/Jose Cabezas

A woman casts her vote during the municipal and parliamentary elections at a polling station in San Salvador, El Salvador, February 28, 2021. REUTERS/Jose Cabezas

People queue at a polling station during the municipal and parliamentary elections, in San Salvador, El Salvador, February 28, 2021. REUTERS/Jose Cabezas

A woman is checked as people queue to a polling station during the municipal and parliamentary elections, in San Salvador, El Salvador, February 28, 2021. REUTERS/Jose Cabezas

A woman holds a ballot during the municipal and parliamentary elections at a polling station in San Salvador, El Salvador, February 28, 2021. REUTERS/Jose Cabezas

An election worker prepares a polling station during the municipal and parliamentary elections in San Salvador, El Salvador, February 28, 2021. REUTERS/Jose Cabezas

A woman casts her vote during the municipal and parliamentary elections at a polling station in San Salvador, El Salvador, February 28, 2021. REUTERS/Jose Cabezas

El Salvador President Nayib Bukele speaks at a news conference during a nationwide quarantine as El Salvador's government undertakes steadily stricter measures to prevent the spread of the coronavirus disease (COVID-19), in San Salvador, El Salvador May 26, 2020. Picture taken May 26, 2020. REUTERS/Jose Cabezas

El Salvador President Nayib Bukele speaks at a news conference during a nationwide quarantine as El Salvador's government undertakes steadily stricter measures to prevent the spread of the coronavirus disease (COVID-19), in Ilopango, El Salvador May 18, 2020. Picture taken May 18, 2020. REUTERS/Jose Cabezas

Rosalina Benitez holds her grandson in a room she rents and in a low-income neighbourhood where many have lost their income since the government suspended the movement of people due to the coronavirus disease (COVID-19) outbreak, in San Salvador, El Salvador May 14, 2020. Picture taken May 14, 2020. REUTERS/Jose Cabezas

Blanca Hernandez adjusts her face mask next to a white shirt reading "We are hungry," and outside the room she rents in a low-income neighbourhood where many have lost their income since the government suspended the movement of people due to the coronavirus disease (COVID-19) outbreak, in San Salvador, El Salvador May 14, 2020. Picture taken May 14, 2020. REUTERS/Jose Cabezas

Maria de Jesus Chavez stands next to a cart she used to sell fruit, outside the room she rents in an alley where many have lost their income since the government suspended the movement due to the coronavirus disease (COVID-19) outbreak, in San Salvador, El Salvador May 14, 2020. Picture taken May 14, 2020. REUTERS/Jose Cabezas

Instant coffee bags, a tomato and half an onion are seen in the kitchen of Ana Orellana, in a low-income neighbourhood where many have lost their income since the government suspended the movement of people due to the coronavirus disease (COVID-19) outbreak, in San Salvador, El Salvador May 14, 2020. Picture taken May 14, 2020. REUTERS/Jose Cabezas

Ana Orellana, a street vendor of coffee, poses in the room she rents in a low-income neighbourhood where many have lost their income since the government suspended the movement of people due to the coronavirus disease (COVID-19) outbreak, in San Salvador, El Salvador May 14, 2020. Picture taken May 14, 2020. REUTERS/Jose Cabezas

Residents of the Las Victorias neighbourhood, most of them informal sellers, wave white flags as a sign asking for food, since the government suspended the movement of people due to the coronavirus disease (COVID-19) outbreak, in Soyapango, El Salvador May 19, 2020. REUTERS/Victor Pena

Street vendor Oscar Mauricio Perez eats a meal in the room he rents with his wife in a low-income neighbourhood where many have lost their income since the government suspended the movement of people due to the coronavirus disease (COVID-19) outbreak, in San Salvador, El Salvador May 14, 2020. Picture taken May 14, 2020. REUTERS/Jose Cabezas

Israel Aquino Ruiz, who earns money by picking up recyclable plastic, stands in his home in a low-income neighbourhood where many have lost their income since the government suspended the movement of people due to the coronavirus disease (COVID-19) outbreak, in Soyapango, El Salvador May 19, 2020. REUTERS/Victor Pena

Street vendor Jose Antonio Guardado holds discarded vegetables and fruits he picked up at a market, outside his home in a low-income neighbourhood where many have lost their income since the government suspended the movement due to the coronavirus disease (COVID-19) outbreak, in San Salvador, El Salvador May 14, 2020. Picture taken May 14, 2020. REUTERS/Jose Cabezas

A white rag hangs from a door as a sign to ask for food, in a low-income neighbourhood where many have lost their income since the government suspended the movement due to the coronavirus disease (COVID-19) outbreak, in San Salvador, El Salvador May 14, 2020. Picture taken May 14, 2020. REUTERS/Jose Cabezas

Carlos Ernesto Castro poses for a photograph inside a work shop where he used to work, and now lives since becoming homeless, as the workshop has been closed due to strict quarantine measures because of the coronavirus disease (COVID-19) outbreak, in San Salvador, El Salvador May 14, 2020. Picture taken May 14, 2020. REUTERS/Jose Cabezas

Luz del Carmen Ardon, an informal seller, cooks beans for her three children in a low-income neighbourhood and where many have lost their income since the government suspended the movement of people due to the coronavirus disease (COVID-19) outbreak, in Soyapango, El Salvador May 19, 2020. REUTERS/Victor Pena

Residents of the Las Victorias neighbourhood, most of them informal sellers, wave white flags as a sign asking for food, since the government suspended the movement of people due to the coronavirus disease (COVID-19) outbreak, in Soyapango, El Salvador May 19, 2020. REUTERS/Victor Pena

Francisco Solorzano pets a dog while sitting outside a room he rents, and next to a white flag as a sign to ask for food, in a low-income neighbourhood where many have lost their income since the government suspended the movement due to the coronavirus disease (COVID-19) outbreak, in San Salvador, El Salvador May 14, 2020. Picture taken May 14, 2020. REUTERS/Jose Cabezas

Ana Orellana, a street vendor of coffee, sits outside a house and near a white flag as a sign to ask for food, in a low-income neighbourhood where many have lost their income since the government suspended the movement of people due to the coronavirus disease (COVID-19) outbreak, in San Salvador, El Salvador May 14, 2020. Picture taken May 14, 2020. REUTERS/Jose Cabezas

Israel Aquino Ruiz, who earns money by picking up recyclable plastic, walks through the door of his home, and near a white flag as a sign to ask for food, in a low-income neighbourhood and where many have lost their income since the government suspended the movement of people due to the coronavirus disease (COVID-19) outbreak, in Soyapango, El Salvador May 19, 2020. REUTERS/Victor Pena

A man sits in an alley in the low-income neighbourhood 15 de Marzo, and near a white flag as a sign to ask for food, as many have lost their income since the government suspended the movement of people due to the coronavirus disease (COVID-19) outbreak, in Soyapango, El Salvador May 19, 2020. REUTERS/Victor Pena

Residents of the Las Victorias neighbourhood, most of them informal sellers, stand on the side of the road with a white flag as a sign asking for food, since the government suspended the movement of people due to the coronavirus disease (COVID-19) outbreak, in Soyapango, El Salvador May 19, 2020. REUTERS/Victor Pena

Salvadoran soldiers gather before a ceremony to deploy military personnel to support a security plan in San Salvador, El Salvador, February 18, 2020. REUTERS/Jose Cabezas

Salvadoran soldiers gather after a ceremony to deploy military personnel to support a security plan in San Salvador, El Salvador, February 18, 2020. REUTERS/Jose Cabezas

Salvadoran soldiers gather before a ceremony to delpoy military personnel to support a security plan in San Salvador, El Salvador, February 18, 2020. REUTERS/Jose Cabezas

Salvadoran soldiers gather before a ceremony to delpoy military personnel to support a security plan in San Salvador, El Salvador, February 18, 2020. REUTERS/Jose Cabezas

A Salvadoran soldier stands in a combat vehicle before a ceremony to deploy military personnel to support a security plan in San Salvador, El Salvador, February 18, 2020. REUTERS/Jose Cabezas

Salvadoran soldiers gather before a ceremony to deploy military personnel to support a security plan in San Salvador, El Salvador, February 18, 2020. REUTERS/Jose Cabezas

Salvadoran soldiers gather after a ceremony to deploy military personnel to support a security plan in San Salvador, El Salvador, February 18, 2020. REUTERS/Jose Cabezas

Salvadoran soldiers gather before a ceremony to deploy military personnel to support a security plan in San Salvador, El Salvador, February 18, 2020. REUTERS/Jose Cabezas

Salvadoran soldiers gather before a ceremony to deploy military personnel to support a security plan in San Salvador, El Salvador, February 18, 2020. REUTERS/Jose Cabezas

El Salvador President Nayib Bukele participates in a ceremony to deploy military personnel to support his security plan in San Salvador, El Salvador, February 18, 2020. REUTERS/Jose Cabezas

El Salvador President Nayib Bukele arrives for a ceremony to deploy military personnel to support his security plan in San Salvador, El Salvador, February 18, 2020. REUTERS/Jose Cabezas