There are fears the country now faces the real threat of famine and a worsening cholera epidemic.
Haiti's interim president describes the destruction as apocalyptic after the storm left over a thousand people dead and nearly 1.5 million in need of urgent help.
A week after the third strongest hurricane ever recorded in the island nation of Haiti, there is no word yet from some of the remote coastal communities.
But a resident of the town of Jeremie, west of the capital Port-au-Prince, has appealed to the international community.
"The situation in Jeremie is very bad. As you can see, everything is gone. The town, all the town, destroyed. So we need the international support, because every family is very poor, they have no water, they have no food, they need medicine for treatment, they need good water."
A spokeswoman for the World Food Program has described the extent of the damage she has found across the country.
"In the north-west of the country, 60 to 90 per cent of the harvests have been destroyed. The fishing industry in that party of the country is paralysed, because the boats and fishing materials have been swept away. In the south-west, almost 100 per cent of the crops have been destroyed, which explains why the situation is so dire."
There are fears now that cholera may spread.
The water-borne disease has already killed thousands of people in a country still recovering from the devastating earthquake six years ago that killed hundreds of thousands.
World Health Organisation cholera expert Dominique Legros says a million doses of the cholera vaccine will be sent to Haiti.
"The top priority, clearly, for those people affected by the hurricane is to give them access to safe water. That's the only way we can control cholera in the long term in Haiti and elsewhere. And for those people who are sick of cholera, of course, the top priority is to treat them and give them access to treatment. And that's a concern today, as you understood, because of the damage to the healthcare facilities."
The United Nations has launched an emergency $160 million appeal to cover the next three months.
Meanwhile, presidential elections due to have taken place over the weekend have had to be postponed in the wake of the hurricane.
Haiti's interim president, Jocelerme Privert, has told the BBC the country faces famine unless action is taken now.
"The losses are massive, both in terms of the human loss and in terms of school and water infrastructure, and what's needed in the short term is we do need water and we do need food and we do need medicine. But the concern is, if we don't take action now for the longer impact, that, within three to four months when the food stops coming, we are going to have a real famine."
