We've discussed this issue before on News Talk Online but it's such a serious matter that we must revisit it periodically.
That issue is malaria, which kills more than 1 million people annually.
There's a shortage of drugs causing concern that malaria will spread in some parts of Africa.
Equally troubling, researchers in the UK have discovered that mosquitoes have developed a resistance to pesticides that have been used against them.
Meanwhile, charities are seeing a decrease in the amount of donations to fight malaria due to a downturn in the economy.
Here to talk about the ongoing fight against malaria is Richard Tren, director of Africa Fighting Malaria.