for example.
Those manufacturers can then sell those medicines
at much lower cost to people who need access to them,
to treatment programs that need access to them.
They pay royalties over the sales to the patent holders,
so they are remunerated for sharing their intellectual property.
There is one key difference
with the airplane patent pool.
The Medicines Patent Pool is a voluntary mechanism.
The airplane patent holders were not left a choice
whether they'd license their patents or not.
They were forced to do so.
That is something that the Medicines Patent Pool cannot do.
It relies on the willingness of pharmaceutical companies
to license their patents and make them available
for others to use.
Today, Nelson Otwoma is healthy.
He has access to antiretroviral drugs.
His son will soon be 14 years old.
Nelson is a member of the expert advisory group
of the Medicines Patent Pool,