The AIDS epidemic is having a growing impact on the transport sector
of the economy of sub-Saharan Africa, where long-distance truck drivers
are at an increased risk of infection due to their frequent contacts with
commercial sex workers. The spread of AIDS in the transport industry is
especially significant to the economy, as truck drivers are largely responsible
for transporting crops and supplies needed for daily subsistence. In this
paper we analyze these effects via two models, one employing a switch and
the other a Verhulst saturation function, to describe the rate at which new
drivers are recruited in terms of the supply and demand for them in the
general population. Results provide an estimate of the epidemic's economic
impact on the transportation sector through the loss of truck drivers
(an estimated 10% per year, with endemic levels near 90%).
Citation: Christopher M. Kribs-Zaleta, Melanie Lee, Christine Román, Shari Wiley, Carlos M. Hernández-Suárez. The Effect of the HIV/AIDS Epidemic on Africa's Truck Drivers[J]. Mathematical Biosciences and Engineering, 2005, 2(4): 771-788. doi: 10.3934/mbe.2005.2.771
Abstract
The AIDS epidemic is having a growing impact on the transport sector
of the economy of sub-Saharan Africa, where long-distance truck drivers
are at an increased risk of infection due to their frequent contacts with
commercial sex workers. The spread of AIDS in the transport industry is
especially significant to the economy, as truck drivers are largely responsible
for transporting crops and supplies needed for daily subsistence. In this
paper we analyze these effects via two models, one employing a switch and
the other a Verhulst saturation function, to describe the rate at which new
drivers are recruited in terms of the supply and demand for them in the
general population. Results provide an estimate of the epidemic's economic
impact on the transportation sector through the loss of truck drivers
(an estimated 10% per year, with endemic levels near 90%).