What is the difference between Wild Polio and other forms of polio you may ask?
When a child is immunised with oral sabin, the weakened vaccine-virus replicates in the intestine for a limited period. During this time, the vaccine-virus is also excreted in urine. In areas of inadequate sanitation, this excreted vaccine-virus can spread in the immediate community before eventually dying out.
On rare occasions, if a population is seriously under-immunised, an excreted vaccine-virus can continue to circulate for an extended period of time. The longer it is allowed to survive, the more genetic changes it undergoes. In very rare instances, the vaccine-virus can genetically change into a form that can paralyse – this is what is known as a circulating vaccine-derived poliovirus.
This form of polio is still occurring in Nigeria with last count in July 2020 being 177 cases.
The solution is to continue immunisation until both forms are eradicated.
Well over 10 million cases of polio have been averted since large-scale administration of oral sabin began 20 years ago.
Thank you so much for all of you who continue to donate to Rotary Foundation. Your money has contributed to this wonderful outcome.
You can contribute during Covid times several ways.
- Directly to My Rotary if you feel comfortable in navigating this site.
- Placing clearly labelled money into our Club’s General Account, letting Russell and myself know.
You can even place the smallest donation in each time as I am not asking for large amounts. Foundation appreciates every cent you can manage to donate.
Sue Cross