2006 Prof. Frank Hadley Collins, Dir., Cntr. for Global Health and Infectious Diseases, Univ. of Notre Dame This 2006 photograph depicted a female Aedes aegypti mosquito while she was in the process of acquiring a blood meal from her human host, who in this instance, was actually the biomedical photographer, James Gathany, here at the Centers for Disease Control. Youll note the feeding apparatus consisting of a sharp, orange-colored fascicle, which while not feeding, is covered in a soft, pliant sheath called the "labellum, which retracts as the sharp stylets contained within pierce the host's skin surface, as the insect obtains its blood meal. The orange color of the fascicle is due to the red color of the blood as it migrates up the thin, sharp translucent tube. The fascicle is composed of a pair of needle-sharp "stylets". The larger of the two stylets, known as the "labrum", when viewed in cross-section takes on the shape of an inverted "V", and acts as a gutter, which directs the ingested host blood towards the insect's mouth. As the primary vector responsible for the transmission of the Flavivirus Dengue (DF), and Dengue hemorrhagic fever (DHF), the day-biting Aedes aegypti mosquito prefers to feed on its human hosts. Ae. aegypti also plays a major role as a vector for another Flavivirus, "Yellow fever". Frequently found in its tropical environs, the white banded markings on the tarsal segments of its jointed legs, though distinguishing it as Ae. aegypti, are similar to some other mosquito species. Also note the lyre-shaped, silvery-white markings on its thoracic region as well, which is also a determining morphologic identifying characteristic.
This females abdomen had become distended due to the blood meal she was ingesting, imparting the red coloration to her translucent abdominal exoskeleton.
Dengue cases are on the rise in Uttar Pradesh’s Prayagaj district. At least 36 people are feared dead due to dengue in Prayagraj so far.
As per unconfirmed reports, over 36 people recently lost their lives in Prayagraj due to dengue. However, no government agency is providing official data regarding deaths due to dengue. Besides, people in a large number are still suffering from Dengue in various parts of Prayagraj.
The severity of the situation that emerged due to the outbreak of dengue may be understood from the fact that a school was ordered to close for one day as a number of students were found suffering from this disease.
Prayagraj chief medical officer (CMO) Nanak Sharan said that insecticides were being sprayed to eliminate mosquitoes to check dengue in the district.
On the other hand, Rajyasabha MP Pramod Tiwari blamed the Yogi government for outbreak of dengue in the district. Instead of taking solid steps to curb dengue in Prayagraj and other parts of the state, Uttar Pradesh chief minister Yogi Adityanath and his cabinet colleagues are busy in electioneering in Himachal Pradesh and Gujarat, he alleged.
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