Dengue Hemorrhagic Fever : Symptoms, Prevention, and Vaccine  แชร์    What is Dengue Hemorrhagic Fever?  Dengue fever is an infectious disease caused by the Dengue virus, transmitted primarily by the Aedes aegypti mosquito. The severity of the disease can range from mild fever and no symptoms to more severe complications, such as low platelet count, bleeding, hepatitis, and in extreme cases, shock, which can be fatal.    High-Risk Groups:  The individuals at higher risk for severe dengue symptoms include:  Young children Older adults People with obesity (BMI > 30 kg/m²) Individuals with malnutrition (albumin levels less than 2.5 g/dL) Diabetic patients Patients with kidney disease Those who have been infected with dengue in the past (secondary infections with different strains can be more severe) Dengue Infection and Immunity:  The Dengue virus has 4 strains (DENV-1, DENV-2, DENV-3, DENV-4). When infected by one strain, the body develops lifelong immunity to that...

Understanding Scarlet Fever  แชร์    Scarlet fever is an infectious disease caused by Streptococcus pyogenes bacteria, also known as Group A Streptococcus (GAS). It typically begins with a throat infection that can develop into scarlet fever. If left untreated, complications such as rheumatic fever or post-streptococcal glomerulonephritis (kidney inflammation) can occur.    Symptoms of Scarlet Fever:  Symptoms usually appear 2-5 days after exposure to the bacteria and include:  High fever and chills Severe sore throat, red throat, and swollen tonsils, possibly with swollen lymph nodes in the neck A red, sandpaper-like rash that begins on the neck and chest, then spreads across the body A bright red tongue resembling a strawberry (Strawberry tongue) Skin peeling around the fingertips and toes during recovery   High-Risk Groups for Scarlet Fever:  Children aged 5–15 years (most common in school-aged children)  People who have had close contact with a scarlet fever patient  Those living...