How immunisation is vital to win the war against disease
Each year, the timing of World Immunisation Week coincides with ANZAC Day, when we acknowledge the achievements and sacrifices of our military personnel. In 2018, two 100th anniversaries remind us that infectious diseases have taken, and still take, a greater toll than the loss of life in warfare:
- It is 100 years since the end of World War 1, which ended in November 1918;
- It is also 100 years since the outbreak of the deadliest influenza pandemic in history – the “Spanish flu” which claimed between 20 million and 100 million lives worldwide in 1918 and 1919.
As the flu season begins in Australia, several media reports have reminded us that the flu pandemic of 1918-1919 led to more deaths than military and civilian casualties in the war (estimated at 20 million) in order to strengthen the argument for us to have our flu vaccinations.
It is also a time to remember the millions of preventable deaths that occur today due to poor health and nutrition, and to promote the actions to prevent these deaths.
Immunisation is one of the most successful and cost-effective health interventions. Expanding access to immunisation is crucial to achieving the Sustainable Development Goal of healthy lives for all people at all ages. Currently, immunisation prevents the deaths of an estimated 2-3 million people per year, but 3 million people, including 1.5 million children up to the age of 5, still die from vaccine-preventable diseases each year.
More than 19 million children in the world are either unvaccinated or under-vaccinated, putting them at serious risk of potentially deadly diseases. Of these children, at least 1 in 10 do not have any access to the health system.
Gavi, the Vaccine Alliance, has helped immunise 700 million people and save 10 million lives since its founding in 2001. Gavi has helped bring new vaccines to the people living in low income countries, including the new Ebola vaccine.
Australia maintained its support to Gavi at $250 million over five years during the last Gavi replenishment in January 2015. That was part of funding of $US 7.5 billion over 5 years which enables Gavi to save 1–2 million children’s lives a year through immunisation programs. Continuing to invest in Gavi helps safeguard the health of children and prevent epidemics around the globe.
Polio eradication action shows both the benefits and the risks of success. Over the last 30 years, the Global Polio Eradication Initiative (GPEI) has helped prevent millions of cases and save an estimated 16 million people from paralysis. In 2018 so far, only 8 cases of polio in Afghanistan and Pakistan have occurred.
Polio programs also support laboratories, emergency response systems, disease surveillance systems, and routine immunisation services, all of which play critical roles in tracking the spread of infectious diseases.
During the 2014 Ebola epidemic, staff trained by GPEI programs to trace polio were able to mobilise and identify people who were at risk, which helped to stop the spread of Ebola in Nigeria quickly.
The success of polio campaigns means that dedicated eradication funding will wind down around the world in the next three to five years, and countries must prepare to maintain the other health system functions, including immunisation, with other domestic and donor funding. ACTION’s two major 2017 research reports A Balancing Act: risks and opportunities as polio and its funding disappears and Progress in Peril? The Changing Landscape of Global Health Financing set out the proposed responsibilities of national governments, multilateral agencies, and bilateral aid donors to ensure transition does not reduce resources for health programs.
Two events in 2018 will increase attention to the progress we are making in ensuring all children have access to vaccinations:
- Delegates at the World Health Assembly next month will receive an update on progress in implementing the Global Vaccine Action Plan (GVAP). The GVAP, which 194 Member States of the World Health Organisation endorsed in 2012, aims to prevent millions of deaths from vaccine-preventable diseases by 2020 through universal access to immunization. Despite improvements in individual countries and a strong global rate of new vaccine introduction, all GVAP targets for disease elimination are behind schedule, including measles, rubella, and maternal and neonatal tetanus.
- The Mid Term Review for Gavi, The Vaccine Alliance, taking place in December 2018, will highlight Gavi’s progress in supporting new vaccine introductions, increasing vaccination coverage and equity in access. The latest assessment on the GVAP suggests that Gavi will need to step up its efforts on increasing vaccination coverage and equity, so the Mid Term Review is the ideal time for Gavi and its supporters (including Australia) to renew their commitment to these goals.
Seeking to accelerate vaccine availability and assisting countries to manage transition to reduced support from Gavi and GPEI will be an essential part of winning the war against diseases that still claim too many lives.
We have made great strides since the the testing of the BCG vaccine for TB in 1921. Since then, we have adopted in many countries vaccinations against about 15 other diseases affecting children, saving millions of lives. While we still have lots of work to do to ensure all people everywhere have access to routine immunisations, we can still celebrate nearly a century of innovation to protect children this World Immunisation Week.
Written by Mark Rice, Policy and Advocacy Manager, RESULTS Australia