Available evidence also suggests that unemployed youth in South Africa are at higher risk of contracting HIV than employed youth (UNAIDS, 2004). Even for non-infected youth, HIV infection of other household members may bring onerous care burdens, either of the sick individual themselves or their children who require care, sometimes requiring the healthy individual to withdraw from the labour market. Such care burdens may also constrain the amount of time available for employment or job search activities. Over the past decade there has been a substantial expansion in three main categories of social grant: the pension grant, the disability grant and the child support grant.