A nurse displays a tetanus, diphtheria and pertussis whooping cough vaccine at a free medical and dental health clinic in Los Angeles, California, U.S., April 27, 2016. REUTERS/Lucy Nicholson 

Kashmiri children who survived the earthquake play with a toy outside their tent in Muzaffarabad November 13, 2005. Doctors in quake-stricken Kashmir have begun a campaign to immunise 800,000 children against potentially killer diseases before the bitter Himalayan winter. Immunisation will be against measles, tetanus, whooping cough, diphtheria and polio. Children living in remote mountain villages, cut off by landslides, were particularly vulnerable due to malnutrition. REUTERS/Amiruddin Mughal 

A Kashmiri child sits on his father's shoulders at a refugee camp in Islamabad November 13, 2005. Doctors in quake-stricken Kashmir have begun a campaign to immunise 800,000 children against potentially killer diseases before the bitter Himalayan winter. Immunisation will be against measles, tetanus, whooping cough, diphtheria and polio. Children living in remote mountain villages, cut off by landslides, were particularly vulnerable due to malnutrition. REUTERS/Faisal mahmood 

An Afghan woman shops for clothes at a roadside stall in Kabul February 15, 2005. Cold weather and an outbreak of whooping cough have killed nearly 130 people, most of them children, in central and western Afghanistan in the past week, officials said on Tuesday. 

Roadside cloth vendors are reflected on a puddle in Kabul February 15, 2005. Cold weather and an outbreak of whooping cough have killed nearly 130 people, most of them children, in central and western Afghanistan in the past week, officials said on Tuesday. Picture taken on February 15, 2005. REUTERS/Ahmad Masood AM/NL 

An Afghan boy sits in the sun in front of a destroyed building in Kabul February 15, 2005. Cold weather and an outbreak of whooping cough have killed nearly 130 people, most of them children, in central and western Afghanistan in the past week, officials said on Tuesday. REUTERS/Ahmad Masood AM/SA 

An Afghan woman shops for clothes at a roadside stall in Kabul February 15, 2005. Cold weather and an outbreak of whooping cough have killed nearly 130 people, most of them children, in central and western Afghanistan in the past week, officials said on Tuesday. REUTERS/Ahmad Masood AM/SA 

An Afghan man cuts wood to make a fire as his children watch in Kabul February 15, 2005. Cold weather and an outbreak of whooping cough have killed nearly 130 people, most of them children, in central and western Afghanistan in the past week, officials said on Tuesday. REUTERS/Ahmad Masood AM/SA 

Afghan children collect wasted materials to be used for recycling purposes in Kabul January 23, 2005. At least 28 Afghan children have died from outbreaks of whooping cough and measles in central Afghanistan in the past week, the public health minister said on Sunday. 

Afghan children collect wasted materials to be used for recycling purposes in Kabul January 23, 2005. At least 28 Afghan children have died from outbreaks of whooping cough and measles in central Afghanistan in the past week, the public health minister said on Sunday. REUTERS/Ahmad Masood AM/LA 

An Afghan girl, Parwine (R) carries her two-year old sister Bahmano,
who is suffering from whooping cough, at a hospital in Kabul January 6,
2003. Thousands of Afghans children die every year of preventable
diseases like whooping cough and measles. REUTERS/Zainal Abd Halim

ZH 

Maria Hu (R) watches her mother Rosario (C) fold the hands of her dead two-year-old son Antonio, who died on December 6 of whooping cough in the remote nothern village of Ilom. The World Health Organization reported December 11 that 17 Guatemalans living in the village of Ilom, who have not received vaccines, died of whooping cough. Many of the villagers who were hiding deep in the jungles during the civil war which ended last year are beginning to return to their homes. Photo taken December 6 1997. 

Maria Hu (R) watches her mother Rosario (C) fold the hands of her dead two-year-old son Antonio, who died on December 6 of whooping cough in the remote nothern village of Ilom. The World Health Organization reported December 11 that 17 Guatemalans living in the village of Ilom, who have not received vaccines, died of whooping cough. Many of the villagers who were hiding deep in the jungles during the civil war which ended last year are beginning to return to their homes. Photo taken December 6 1997.

GUATEMALA HEALTH