how do we break the chain of infection in dengue fever?
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No matter the germ, there are six points at which the chain can be broken and a germ can be stopped from infecting another person. The six links include: the infectious agent, reservoir, portal of exit, mode of transmission, portal of entry, and susceptible host.
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Mosquitoes in Late Feb. and March. There are two peak seasons for Dengue transmission in Sri Lanka: one is from October to December; another is from May to July. This does not mean no mosquitoes in February and March.
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Dengue is a severe, flu-like illness that affects infants, young children and adults, but seldom causes death. Symptoms usually last for 2–7 days, after an incubation period of 4–10 days after the bite from an infected mosquito.
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One strategy to minimise BVD transmission is to make infected cattle less infectious, and this can be achieved by increasing the antibody titer. Cattle that have antibodies at the time that they acquire acute BVDV infection do not shed as much virus, and they will shed virus for a shorter period of time.
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Dengue is spread through the bite of the female mosquito (Aedes aegypti). The mosquito becomes infected when it takes the blood of a person infected with the virus. After about one week, the mosquito can then transmit the virus while biting a healthy person.
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['Testing pregnant women for GBS bacteria.', 'Giving antibiotics, during labor, to women at increased risk.']
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This study may suggest that leukopenia in dengue fever may be caused by virus-induced destruction or inhibition of myeloid progenitor cells. Thrombocytopenia may result from by destruction of peripheral platelet or bone marrow megakaryocytes by viruses which consequently reduce the platelet production.
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Dengue is transmitted by the bite of the Aedes mosquito that typically attacks during day time. Its favorite spots are below the elbow and below the knee.
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["Don't smoke.", 'Eat a diet high in fruits and vegetables.', 'Exercise regularly.', 'Maintain a healthy weight.', 'If you drink alcohol, drink only in moderation.', 'Get adequate sleep.', 'Take steps to avoid infection, such as washing your hands frequently and cooking meats thoroughly.']
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Complete blood count (CBC)—to look for low platelet count typical of the later stages of the illness and to detect the decrease in hemoglobin, hematocrit, and red blood cell (RBC) count (evidence of anemia) that would occur with blood loss associated with severe dengue fever.
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Drink Plenty of Fluids. Staying hydrated is one of the best things you can do for your body while your immune system is gearing up for a fight. Water, decaffeinated tea, sport drinks, and sugar-free drinks are best. They can help fight dehydration associated with fever.
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To treat a fever: Stay hydrated with water, juice, or broth. Eat when you feel hungry and your stomach can tolerate it. Avoid bundling up too much.
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['Drink plenty of fluids. Fever can cause fluid loss and dehydration, so drink water, juices or broth. ... ', 'Rest. You need rest to recover, and activity can raise your body temperature.', 'Stay cool. Dress in light clothing, keep the room temperature cool and sleep with only a sheet or light blanket.']
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A hematocrit level increase greater than 20% is a sign of hemoconcentration and precedes shock. The hematocrit level should be monitored at least every 24 hours to facilitate early recognition of dengue hemorrhagic fever and every 3-4 hours in severe cases of dengue hemorrhagic fever or dengue shock syndrome.
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Dengue infection commonly results in thrombocytopenia (in both mild and severe forms), and platelets have emerged as key voyagers in the pathogenesis of dengue. Recent studies have shown that dengue induces platelet activation and apoptosis, which modulate inflammatory responses in target monocytes.
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Dengue fever Dengue causes flu-like symptoms and lasts for 2-7 days. Dengue fever usually occurs after an incubation period of 4-10 days after the bite of the infected mosquito. High Fever (40°C/ 104°F) is usually accompanied by at least two of the following symptoms: Headaches.
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The Chain of Infection Model. This model explains the spread of a communicable disease from one host (or person) to another. The basic idea represented in the chain of infection is that individuals can break the chain (reduce the risk) at any point; thus the spread of the disease can be stopped.