With millions of AIDS victims also facing a food crisis, the fight against HIV/AIDS is getting a lot tougher, warned a UN agency official.
The food crisis has an "impact on the real income of poor people, that will go down in relative or in absolute terms because the prices go up," said Martin Bloem, an expert on nutrition and HIV/AIDS from the World Food Programme (WFP).
Poor people already spend 60 to 70 percent of their income on food, he told participants of the 15th ICASA conference on HIV/AIDS in Africa on Friday.
High prices force them to cut costs for instance by cutting expensive animal products like meat and eggs from their diet.
"As a result of that they will increase the mineral deficiencies (that) already (exist in) their families," said Bloem.
The immune systems of the people will be affected, especially in children and vulnerable groups, the nutritionist warned.
"You will see an increase in tuberculosis and a deterioration in people living with HIV," Bloem said.
Tuberculosis is an opportunist infection which often occurs in people whose immune system is weakened by HIV/AIDS.
Besides this direct effect of the food crisis there are also many indirect effects which weigh on AIDS patients, studies have shown.
People cut in their expenses by visiting clinics less often and sometimes end their treatment because the trip to get medicine, even if it is given out for free, is long and they cannot make it because they cannot afford the fare or simply because they are physically weakend by hunger, Bloem explained.