Hi, The Widal test is a serological test used to diagnose typhoid fever and other related diseases caused by the bacteria Salmonella typhi and Salmonella paratyphi. The test measures the levels of antibodies in the blood against these bacteria. In your son s case, the Widal test shows positive results for all 4 types, indicating that he has been exposed to Salmonella bacteria. The positive result for S typhi O at 1/80 indicates that he is likely infected with Salmonella typhi, the bacteria responsible for causing typhoid fever. Other abnormal reports such as low hemoglobin levels, high neutrophil counts, and low lymphocyte counts could be due to the body s response to the infection. The low hemoglobin levels may be due to the loss of blood in the stool, which is a common symptom of typhoid fever. Your son s recovery will depend on various factors, such as the severity of the infection and how soon the treatment is started. Treatment usually involves antibiotics, fluids, and electrolytes to manage symptoms and prevent complications. It is important to follow the doctor s instructions carefully, complete the course of antibiotics, and provide supportive care to help your son recover. As for the duration of recovery, it can vary from a few days to a few weeks, depending on the severity of the infection and how soon the treatment is started. It is recommended to follow up with the doctor regularly to monitor your son s progress and ensure that he is recovering well. If you notice any new symptoms or if your son s condition worsens, it is important to seek medical attention immediately. Take care. Hope I have answered your question. Let me know if I can assist you further. Regards, Dr. Priyanka, General & Family Physician