Many have blood in their respiratory secretions, they vomit blood, have bloody stool. On 27 islands, surveyors contracted by UNDP are performing technical assessments for infrastructure repair of jetties, warehouses, lighthouses and harbours. That rate has since dropped to less than one centimetre annually, they said, thanks to government measures to control groundwater pumping. DEDAYE, Myanmar, May 31, 2008 (AFP) - Myanmar has deployed armed riot police in one of the regions hit hardest by the cyclone, stationing them along a few kilometres (miles) of road leading to the Irrawaddy Delta. Most of the homes destroyed were cave dwellings close to hills and mountainsides. Indeed, Iranian pastoralists, arable farmers, fishermen and nomads are moving out in large numbers, only to be replaced by Afghans. If we cultivate small fields on the extremely fertile lowlands near the Limpopo, we risk losing our whole crop to frequent floods.