Nov. 21 (UPI) -- At least 41 people have been killed in Vietnam since last weekend after heavy rains and flooding left large areas of central regions of the country underwater. Nine people remain unaccounted for. More than 52,000 homes were inundated , 500,000 households were without power and tens of thousands were evacuated after 5 feet of rain fell in three days. In some areas, the flood level was more than 17 feet, the highest recorded in more than three decades. The worst affected areas