Please indicate to what extent hunger and malnutrition exist in the HKSAR. In particular, what is the situation of vulnerable and disadvantaged groups (including the unemployed, migrant workers, children, disabled and older persons).
28. 请说明香港特别行政区的饥饿和营养不良情况，尤应说明弱势及处境不利群体(包括失业、移徙工人、儿童、残疾人和老龄人的处境。