Group 1 - The core message emphasizes the increased risk of infectious intestinal diseases such as diarrhea and typhoid fever following flooding in southern regions, urging the public to take preventive measures [1][2] - Experts recommend ensuring safe drinking water by boiling it or using certified bottled water, and maintaining cleanliness of water containers to prevent contamination [1] - Food safety guidelines suggest consuming unspoiled fruits and vegetables, and if necessary, properly disinfecting flood-affected produce before consumption [1] Group 2 - Post-flood, it is crucial to maintain environmental and personal hygiene by ventilating homes, cleaning surfaces, and removing mold and debris [2] - In case of diarrhea, a recommended remedy is a homemade rehydration solution using mineral water, salt, and sugar, while also advising caution for specific warning signs that require medical attention [2]