By Chioma Obinna

The World Health Organisation, WHO, and the United State Centre for Disease Control and Prevention, CDC, has expressed worry over increase in unvaccinated children saying that no fewer than 22 million infants missed their first dose of measles vaccines.

In a new report by the duo of WHO and US CDC,  they noted that while reported measles cases have fallen compared to previous years, progress toward measles elimination continues to decline and the risk of outbreaks mounting.

The report noted that during 2020, more than 22 million infants missed their first dose of measles vaccine – 3 million more than in 2019, marking the largest increase in two decades and creating dangerous conditions for outbreaks to occur. 

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Compared with the previous year,  reported measles cases decreased by more than 80 percent in 2020, the report added.

However, measles surveillance also deteriorated with the lowest number of specimens sent for laboratory testing in over a decade, weak measles monitoring, testing and reporting for measles jeopardise countries’ ability to prevent outbreaks of this highly infectious disease.

“Major measles outbreaks occurred in 26 countries and accounted for 84 percent of all reported cases in 2020,” the report noted.

MD, CDC’s Global Immunization Director, Kevin Cain said: “Large numbers of unvaccinated children, outbreaks of measles, and disease detection and diagnostics diverted to support COVID-19 responses are factors that increase the likelihood of measles-related deaths and serious complications in children.

“We must act now to strengthen disease surveillance systems and close immunity gaps, before travel and trade return to pre-pandemic levels, to prevent­­ deadly measles outbreaks and mitigate the risk of other vaccine-preventable diseases.”

Cain said lower reported measles cases in 2020 must not mask the growing risk of measles to children worldwide.

The ability of countries to ensure children receive both recommended doses of measles vaccine is a key indicator of global progress toward measles elimination and capacity to prevent the spread of the virus.

First-dose coverage fell in 2020, and only 70 percent of children received their second dose measles vaccine, well below the 95 percent coverage needed to protect communities from the spread of the measles virus.

Adding to the worsening of immunity gaps worldwide, 24 measles vaccination campaigns in 23 countries, originally planned for 2020, were postponed because of the COVID-19 pandemic – leaving more than 93 million people at risk for the disease.

These supplemental campaigns are needed where people have missed out on measles-containing vaccines through routine immunization programs.

The Director of WHO’s Department of Immunisation, Vaccines, and Biologicals, Dr Kate O’Brien said: “While reported measles cases dropped in 2020, evidence suggests we are likely seeing the calm before the storm as the risk of outbreaks continues to grow around the world.

“It’s critical that countries vaccinate as quickly as possible against COVID-19, but this requires new resources so that it does not come at the cost of essential immunization programs. Routine immunisation must be protected and strengthened; otherwise, we risk trading one deadly disease for another.”

Immunisation and surveillance systems must be strengthened to reduce growing measles risks. 

The COVID-19 pandemic caused significant disruptions to immunization services and changes in health-seeking behaviors in many parts of the world.

While the measures used to mitigate COVID-19 – masking, handwashing, distancing – also reduce the spread of the measles virus, countries and global health partners must prioritize finding and vaccinating children against measles to reduce the risk of explosive outbreaks and preventable deaths from this disease.

Measles is one of the world’s most contagious human viruses but is almost entirely preventable through vaccination.

In the last 20 years, the measles vaccine is estimated to have averted more than 30 million deaths globally. Estimated deaths from measles dropped from around 1,070,000 in 2000 to 60,700 in 2020.

The estimated number of measles cases in 2020 was 7.5 million globally.  Measles transmission within communities is not only a clear indicator of poor measles vaccination coverage, but also a known maker, or ‘tracer,’ that vital health services are not reaching populations most at risk.

Vanguard News Nigeria

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