Mosquito Repellant: A household necessity


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During the rainy season mosquito flourishes and stagnant water builds up that can be the can be their breeding ground. They can also breed in water-filled flower pots, plastic bags, and cans year round. Most kids especially in school and are prone to this conditions our advised to wear long pants and long sleeves. For personal protection, they are asked to use mosquito repellant sprays or lotions that contain DEET like Off Lotion for kids by Johnson and Johnson that is so effective with non greasy feel.

One mosquito bite can inflict the disease called Dengue Fever. A virus contracted from the bite of a striped Aedes aegypti mosquito that has previously bitten an infected person. This mosquito is a daytime biter with peak periods of biting around sunrise and sunset. It may bite at any time of the day and is often hidden inside homes or other dwellings, especially in urban areas.

The prevention of dengue requires control or eradication of the mosquitoes carrying the virus that causes dengue. In places plagued by dengue fever, people are urged to empty stagnant water from old tires, trash cans, and flower pots. Governmental initiatives to decrease mosquitoes also help to keep the disease in check but have been poorly effective.
If bitten by a mosquito carrying the virus, the incubation period ranges from three to 15 (usually five to eight) days before the signs and symptoms of dengue appear. Dengue starts with chills, headache, pain upon moving the eyes, and low backache. Painful aching in the legs and joints occurs during the first hours of illness. The temperature rises quickly as high as 104° F (40° C), with relative low heart rate (bradycardia) and low blood pressure (hypotension). The eyes become reddened. A flushing or pale pink rash comes over the face and then disappears. The glands (lymph nodes) in the neck and groin are often swollen. Fever and other signs of dengue last for two to four days, followed by rapid drop in temperature (defervescence) with profuse sweating. This precedes a period with normal temperature and a sense of well-being that lasts about a day. A second rapid rise in temperature follows. A characteristic rash appears along with the fever and spreads from the extremities to cover the entire body except the face. The palms and soles may be bright red and swollen. If this signs show kindly consult a doctor and have your blood tested for accurate diagnosis.
The Dengue Fever virus is not contagious and cannot be spread directly from person to person. There must be a person-to-mosquito-to-another-person pathway. There is currently no vaccine available for dengue fever because it is caused by a virus; there is no specific medicine or antibiotic to treat it. For typical dengue, the treatment is purely concerned with relief of the symptoms (symptomatic). Rest and fluid intake for adequate hydration is important. Aspirin and nonsteroidal anti-inflammatory drugs should be avoided. Acetaminophen (Tylenol) and codeine may be given for severe headache and for the joint and muscle pain (myalgia).
There is a vaccine undergoing clinical trials, but it is too early to tell if it will be safe or effective.

Risk Of Travellers

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The chief mosquito vector, Ae. aegypti, is most commonly found in or next to human habitations and favors to nourish on humans during the daylight. It has two crest stages of biting movement: in the break of day for a number of hours later than daybreak and in the late hours of daylight for several hours previous to dark. Even so, the mosquito may provide for at any time during daytime, in particular indoors, in shaded areas, or when it is gloomy. Mosquito propagation sites contain non-natural water containers such as unnecessary tires, exposed water storeroom barrels, buckets, flower vases or pots, cans, and cisterns.

Is dengue an emerging infectious disease? – Part I

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All types of dengue disease are re-emerging globally and producing larger and more recurrent outbreaks, in particular in cities in the tropics. The surfacing of dengue as a main public health crisis has been most staged in the western hemisphere. Dengue fever has arrived at rampant levels in Central America and is frightening the United States. There are quite a lot of issues that are contributing to the renaissance of dengue fever:

  1)      No valuable mosquito control efforts are happening in most countries with dengue.     2)      Public health structures to identify and be in charge of epidemics are worsening around the world.  

Dengue vaccine

We all know that there is no known immunity or vaccine against Dengue, but we also know that it is a possibility waiting to become a reality. The CIGB project might just be the answer we are all looking for. In coordination with Mayra Mune, a molecular immunologist  has evaluated the use of recombinant protein found in yeast Pichia pastor. This can be the key in developing a vaccine as it is observed that there is a rise both in neutralizing antibodies against dengue as well as other tropical viruses. If this pursues, the world can say goodbye to one of its serial killers.