Cholera, Acute Gastroenteritis and Typhoid Fever

Overview

Cholera, acute gastroenteritis (AGE) and typhoid fever are different health problems that can overlap. Safe water, sanitation, food hygiene, handwashing and timely care help reduce illness and its complications.

Cholera is an acute bacterial intestinal infection. AGE is inflammation or infection of the stomach and intestines, often causing loose stools and vomiting. Typhoid fever is a systemic infection caused by Salmonella Typhi. Symptoms alone cannot tell you which condition is present.

The immediate danger shared by watery diarrhea and vomiting is dehydration, which occurs when the body loses more water and salts than it can replace. Inadequate nutrition can make recovery harder, especially for young children and other vulnerable people, but dehydration and poor nutrition do not cause cholera, typhoid, or an infection by themselves.

Latest statistics in the Philippines

A WHO Philippines update published in July 2026 reports more than 2,000 cholera cases and 24 deaths in the Philippines in 2024.

Cause

Cholera: Vibrio cholerae bacteria spread when a person swallows food or water contaminated with feces. Unsafe drinking water, poor sanitation, inadequate hygiene and raw or undercooked seafood can increase risk. Cholera can cause very rapid loss of water and electrolytes.

Acute gastroenteritis: AGE can be caused by viruses such as norovirus or rotavirus, bacteria, parasites, toxins in food or occasionally medicines. It can spread through contaminated hands, surfaces, food or water and through close contact with a person who is sick. Not every case of AGE is cholera and not every case is bacterial.

Typhoid fever: Salmonella Typhi usually spreads through food or water contaminated with stool from a person who has the infection or carries the bacteria. Untreated water, unsafe ice, unwashed produce, undercooked food and poor handwashing can transmit it. Typhoid is an infection that needs medical evaluation.

What are the symptoms?

Cholera: The incubation period is usually 1 to 5 days and can be as short as about 12 hours. The classic illness is sudden, profuse, watery diarrhea that may look pale or cloudy, with vomiting and leg or muscle cramps. Severe dehydration can develop quickly, causing intense thirst, dry mouth, very little urine, dizziness, weakness, confusion, shock, or loss of consciousness.

Acute gastroenteritis: AGE has no single incubation period because it has many causes. Viral AGE may begin 1 to 3 days after infection, while norovirus can cause symptoms within 12 to 48 hours. Common symptoms include loose or watery stools, abdominal cramps or pain, nausea, vomiting and sometimes fever. AGE may also cause loss of appetite and body aches. Blood or black stool, persistent vomiting, severe pain or high fever is not something to manage casually at home.

Typhoid fever: The incubation period is typically 6 to 30 days. Symptoms often develop gradually and may include a prolonged fever, headache, tiredness, weakness, chills, muscle aches, abdominal pain, nausea, reduced appetite, constipation or diarrhea and sometimes a rash. Untreated infection can cause serious complications, including intestinal bleeding or perforation and infection throughout the body.

Signs of dehydration in anyone include extreme thirst, dry mouth, dark or much less urine, dizziness, unusual tiredness, or confusion. In babies and young children, watch for fewer wet diapers, no tears when crying, a sunken soft spot or eyes, a dry mouth, unusual sleepiness, or marked irritability.

How to prevent

Make water safe: Use bottled, boiled, filtered or properly treated water for drinking, cooking, brushing teeth, washing hands, making ice and preparing infant formula.

Protect food: Cook food thoroughly, keep it covered, separate raw and cooked food, wash produce with safe water and refrigerate perishable food promptly. Avoid unpasteurized milk, untreated water, raw or undercooked seafood and food prepared by someone who is sick. Do not taste food to decide whether it is safe.

Reduce spread: Wash hands with soap and safe water after using the toilet, changing diapers, cleaning up stool or vomit and before preparing or eating food. Use a safe toilet, clean and disinfect food-preparation surfaces and avoid preparing food for others while sick.

Protect nutrition: Continue breastfeeding. Offer age-appropriate, safe, nourishing foods as soon as the person can tolerate them. Examples include soft rice or lugaw, bananas, boiled potatoes, eggs, fish, chicken and well-cooked vegetables, prepared with safe water and cooked thoroughly. Choose foods appropriate for the person's age and usual diet and do not dilute infant formula. Ask a health professional about typhoid or oral cholera vaccination when it is recommended for a person's age, location, exposure or travel risk.

Treatment at home and when to see a doctor

For mild illness, replace fluids and salts early by using an oral rehydration solution (ORS). Use a packaged ORS sachet when available and follow its label. If a sachet is not available, prepare homemade ORS by mixing 6 level teaspoons of sugar and 1/2 level teaspoon of salt into 1 liter of clean, safe drinking water; use water that has been boiled and cooled when needed. Stir until completely dissolved, use a clean container and accurate level measures, cover the solution and discard any unused portion after 24 hours. Too much salt or sugar can be dangerous. Give small, frequent sips; if vomiting occurs, pause briefly and try again more slowly. Continue breastfeeding and return to normal, safe, nourishing foods as tolerated.

Avoid using soft drinks, very sugary drinks, or alcohol as the main replacement for lost fluids. Do not start leftover or borrowed antibiotics. Viral AGE does not improve with antibiotics, while typhoid and some bacterial infections need a clinician to choose the right medicine. Suspected cholera needs immediate ORS and urgent medical care; severe cholera may require intravenous fluids and antibiotics under professional direction.

Seek urgent or emergency care for inability to drink or persistent vomiting, very little or no urine, confusion, fainting, severe weakness, signs of shock, difficulty breathing, blood or black stool, blood in vomit, severe abdominal pain or a high or persistent fever. Seek care promptly for suspected cholera or typhoid or when illness is worsening. Babies, young children, older adults, pregnant people and people with weakened immunity or serious chronic conditions can become dehydrated quickly and should be assessed early.

A health professional may need to examine the person, assess dehydration and order stool or blood tests. Do not try to diagnose cholera, AGE or typhoid from stool appearance alone. Call the nearest health facility or local health office for current instructions, especially when several people become ill after sharing the same water source or meal.

What are the campaigns and programs of DOH and the Philippine government

DOH rainy-season messaging uses the W.I.L.D. framework: Waterborne diseases, Influenza-like illnesses, Leptospirosis and Dengue. For this guide, the waterborne-disease message means using safe water, practicing hand and food hygiene, watching for loose stools and dehydration and seeking care early.

The DOH Food and Waterborne Diseases Prevention and Control Program supports surveillance, prevention, health promotion, coordination and safer water and sanitation. DOH and local health teams may investigate clusters, support water treatment and hygiene measures and refer patients for care. The exact response depends on the local situation and current DOH or LGU instructions.

DOH and WHO have also worked with affected Philippine areas on cholera risk assessments and targeted control. A WHO Philippines update says DOH endorsed 165 priority cities and municipalities for targeted cholera interventions in May 2026. This work reinforces local surveillance, water and sanitation measures, risk communication and rapid response.

DOH regional health advisories reinforce practical measures such as safe water, handwashing, oral rehydration for vomiting or loose stools and early consultation.

Summary

Safe water, food hygiene, handwashing, sanitation, breastfeeding and timely care help protect people from cholera, AGE and typhoid fever. Start ORS early when vomiting or loose stools begin. Because these illnesses overlap but need different evaluation and treatment, get prompt medical help for dehydration, blood in stool, prolonged or severe fever, persistent vomiting, suspected cholera or typhoid or any worsening illness.