ISLAMABAD (AFP) - Two million people have fallen ill from diseases since monsoon rains left the Sindh province under several feet of water, a spokesman of National Disaster Management Authority (NDMA) said on Thursday. More than 350 people have been killed and over eight million people have been affected this year by floods that officials say are worse in parts of Sindh province than last year, when the country saw its worst ever disaster. Malaria, diarrhoea, skin disease and snake bites were among the health problems facing two million people across 23 Sindh districts, said Irshad Bhatti, the spokesman of NDMA said. In some areas, diseases also spread out because of dead animals but there is no major break-out of any epidemic, Bhatti added, calling for the donation of mosquito nets and medicines to help the aid efforts. The World Health Organization (WHO) has said there is a desperate shortage of clean drinking water in the south which has also triggered outbreaks of acute diarrhoea and other waterborne diseases. The UNs children agency has pledged to distribute 200,000 litres of water to 40,000 people daily and deploy 40 more water tankers soon, to avert further disease. Parts of Sindh are under several feet of water and meteorological department says the worst-affected districts of Badin, Mirpurkhas and Thar seeing have seen eight times the usual levels of rainwater. The government is trying to fend off criticism of an inadequate response to the floods one year after it was castigated for failing to respond quickly enough to its worst ever floods that affected a total of 21 million people. For months, aid groups had warned the government to invest in adequate prevention measures to mitigate against seasonal rains, avoid a repeat of last years $10 billion losses, and protect those left vulnerable two years running. Calling on the international community to step in to help once more, the UN and Islamabad on Sunday jointly issued an emergency funding appeal for $357 million for emergency rescue and relief efforts. So far only the Japanese government has declared a pledge, of 10 million dollars, the UN said. We appeal to international community and other donor countries to come forward and help the people devastated by the floods in Pakistan, said UN spokeswoman Ishrat Rizvi. Zafar Qadir, chairman of the NDMA, said that more than 550,000 people had been made homeless in the Sindh and called for urgent donations of tents. Over five million people are in camps and we need an immediate supply of tents to accommodate all of them. We are facing a severe shortage of tents, he told a news conference. He said that Japan has sent 3,500 tents so far. Monitoring Desk adds: Authorities in Pakistan are still struggling to reach those worst affected by floods, weeks after devastating monsoon rains in interior Sindh. Aid workers, who are also affected by flooding, have had difficulty getting help to the thousands stranded on higher ground, officials told BBC on Thursday. Officials said eight million people have now been affected by the crisis. Last week they put the figure at about six million. This years floods in Sindh are thought to be worse than last years deluge. Caused by heavy monsoon rains, the floods have already killed over 300 people and damaged or destroyed some 665,000 homes across the province since they began last month. Officials have also expressed fears about the rapid spread of disease and said that the problems affecting the southern province are only getting more acute. Already, more than two million people are estimated to be suffering from flood-related diseases following the torrential rain, cases of malaria and diarrhoea are increasing, and at least 7,000 people are being treated for snake bites. A basic shortage of manpower was the reason cited by officials for the problems in channelling aid to those most in need. People who have in the past worked as aid delivery workers are themselves in problems, their homes are inundated and families displaced, Irshad Bhatti, a spokesman for the National Disaster Management Authority (NDMA), told BBC. Bhatti added that a lack of coordination between different agencies, officials and the military made matters worse. Aid delivery is being carried on by a number of aid agencies and the military, but there is no coordination, and as a result efforts of all these entities are proving ineffective, he said.