While the country's health services are already struggling to cope with the dengue influx, other viral fevers and waterborne diseases are further aggravating the situation.

Doctors advised all to exercise caution while consuming water and fluids like juices from outside as these can be the origin of waterborne diseases like cholera, diarrhoea, typhoid, amebiasis, hepatitis, and gastrointestinal complications.

Brig Gen Quazi Md Rashid-Un-Nabi, director of Sir Salimullah Medical College Mitford Hospital, said 30 to 40 percent of their outdoor patients are coming with fever, most of them with viral fever apart from dengue.

He said the number of patients with dengue is now slightly decreasing but those of other viral fever are high.

"Of the patients coming to the hospital, around 50 percent have influenza-like illnesses and waterborne diseases other than dengue," said HM Nazmul Ahsan, associate professor at Shaheed Suhrawardy Medical College Hospital.

He said around 5 to 10 percent of patients are coinfected with dengue and other diseases like pneumonia, typhoid or urinary tract infection.

These patients are in a risky group and need hospitalisation, he said.

Coinfection is suspected when a dengue patient does not recover within a week; then prompt steps are necessary, Nazmul Ahsan added.

Meanwhile, at least nine dengue patients died, six of them in Dhaka city, in the last 24 hours till yesterday morning, according to Directorate General of Health Services.

The total number of deaths from dengue rose to 435 while total number of cases rose to 92,024.

Sharmin Islam Bithi, an on-duty doctor of Medicine Unit of Dhaka Medical College Hospital, said 70 percent of their patients coming every day are with dengue, but there are also patients of typhoid.

However, the hospital usually does not admit a typhoid patient unless it is a complicated case, she said.

Monir Hossain, father of one-year-old dengue patient Abdur Rahman who is undergoing treatment at the Dr MR Khan Shishu Hospital and Institute of Child Health, said his son was first diagnosed with dengue virus and later he was also diagnosed with pneumonia.

A lab technician of MR Khan hospital said they usually get 15 to 20 typhoid patients in a month who come to check for dengue.

Dr Nazmul also said that patients, especially adults, with nausea, cough or throat pain along with high fever of 103-105 degrees within 12 hours to 14 hours have influenza-like viral fever, he said.

Those without any running nose, cough or throat pain but having body pain, headache, eyes and back pain along with fever and nausea are suspected dengue patients, Nazmul said.

However, there is an exception for children and they ask every child who has cold related problems or fever to do an NSI test. Nausea, throat pain or running nose are not mandatory to check for the children to identify the dengue, he also said.

"Since people are advised to take lots of fluids, many are consuming  juices like sugarcane juice from outside which are infecting them with waterborne diseases," Nazmul said.

"We urge all to be cautious while consuming such fluids from outside," he added.