Nigeria, Somalia, 3 Others Top Chart On Measles Outbreak In 2022

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A health worker administering vaccine to children.

Nigeria, Somalia, Afghanistan, Yemen and Ethiopia have recorded the highest rate of measles outbreaks in the first two months of 2022 as against the same period in 2021.

A chart in a statement released by the United Nations Children’s Fund (UNICEF) and the World Health Organisation (WHO) showed that Nigeria is leading the chart with 12,341 reported cases in the last 12 months until April 2022, followed by Somalia with 9,068, Yemen with 3,629, Afghanistan with 3,628 and Ethiopia with 3,039 cases.

Reported worldwide measles cases increased by 79 per cent in the first two months of 2022, compared to the same period in 2021, as WHO and UNICEF warn conditions are ripe for serious outbreaks of vaccine-preventable illnesses.

“An increase in measles cases in January and February 2022 is a worrying sign of a heightened risk for the spread of vaccine-preventable diseases and could trigger larger outbreaks, particularly of measles affecting millions of children in 2022,” warned WHO and UNICEF.

The statement pointed out that pandemic-related disruptions, increasing inequalities in access to vaccines and the diversion of resources from routine immunisation are leaving too many children without protection against measles and other vaccine-preventable diseases.

“The risk for large outbreaks has increased as communities relax social distancing practices and other preventive measures for COVID-19 implemented during the height of the pandemic. In addition, with millions of people being displaced due to conflicts and crises including in Ukraine, Ethiopia, Somalia and Afghanistan, disruptions in routine immunisation and COVID-19 vaccination services, lack of clean water and sanitation, and overcrowding increase the risk of vaccine-preventable disease outbreaks,” it said.

According to it, almost 17,338 measles cases were reported worldwide in January and February 2022, compared to 9,665 during the first two months of 2021. As measles is very contagious, cases tend to show up quickly when vaccination levels decline. The agencies are concerned that outbreaks of measles could also forewarn outbreaks of other diseases that do not spread as rapidly.

It added that apart from its direct effect on the body, which can be lethal, the measles virus also weakens the immune system and makes a child more vulnerable to other infectious diseases like pneumonia and diarrhoea, including for months after the measles infection itself among those who survive.  Most cases occur in settings that have faced social and economic hardships due to COVID-19, conflict, or other crises and have chronically weak health system infrastructure and insecurity.

“Measles is more than a dangerous and potentially deadly disease. It is also an early indication that there are gaps in our global immunisation coverage, gaps vulnerable children cannot afford,” said Catherine Russell, UNICEF executive director. “It is encouraging that people in many communities are beginning to feel protected enough from COVID-19 to return to more social activities. But doing so in places where children are not receiving routine vaccination creates the perfect storm for the spread of a disease like measles.”  

In 2020, 23 million children missed out on basic childhood vaccines through routine health services, the highest number since 2009 and 3.7 million more than in 2019.

As of April 2022, the agencies reported 21 large and disruptive measles outbreaks around the world in the last 12 months. Most of the measles cases were reported in Africa and the East Mediterranean region. The figures are likely higher as the pandemic has disrupted surveillance systems globally, with potential underreporting.

“The COVID-19 pandemic has interrupted immunisation services, health systems have been overwhelmed and we are now seeing a resurgence of deadly diseases including measles. For many other diseases, the impact of these disruptions to immunisation services will be felt for decades to come,” said Dr Tedros Adhanom Ghebreyesus, director-general of the World Health Organisation. “Now is the moment to get essential immunisation back on track and launch catch-up campaigns so that everybody can have access to these life-saving vaccines.”

“As of 1 April 2022, 57 vaccine-preventable disease campaigns in 43 countries that were scheduled to take place since the start of the pandemic are still postponed, impacting 203 million people, most of whom are children. Of these, 19 are measles campaigns, which put 73 million children at risk of measles due to missed vaccinations. In Ukraine, the measles catch-up campaign of 2019 was interrupted due to the COVID-19 pandemic and, thereafter, due to the war. Routine and catch-up campaigns are needed wherever access is possible to help make sure there are no repeated outbreaks as in 2017-2019 when there were over 115,000 cases of measles and 41 deaths in the country – this was the highest incidence in Europe.

“Coverage at or above 95 per cent with two doses of the safe and effective measles vaccine can protect children against measles. However, COVID-19 pandemic related disruptions have delayed the introduction of the second dose of the measles vaccine in many countries.

“As countries work to respond to outbreaks of measles and other vaccine-preventable diseases and recover lost ground, UNICEF and WHO, along with partners such as Gavi, the Vaccine Alliance, the partners of the Measles & Rubella Initiative (M&RI), Bill & Melinda Gates Foundation and others are supporting efforts to strengthen immunisation systems,” the statement added.

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