ඩෙංඟු රෝගින් 50% කින් ඉහළට

December 28, 2019 8:31 am මිනිත්තු 1 ක කියවීමක්

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.

මෙම වසරේ වාර්තාවූ ඩෙංගු රෝගීන් සංඛ්‍යාව පසුගිය වසරට වඩා 50% පමණ ඉහල ගොස් ඇති බව ජාතික ඩෙංගු මර්දන ඒකකය අනාවරණය කර සිටී.

පසුගිය වසරේ ඩෙංගු රෝගීන් 51000 ක් වාර්තා වී ති අතර 2019 වසරේ මේ දක්වා කාලය තුළ වාර්තා වී ඩෙංගු රෝගීන් සංඛ්‍යාව 91,000 කට අධික බව වාර්තාවේ.

මේ වන විටත් කොළඹ, ගම්පහ, මඩකලපුව හා ත්‍රිකුණාමලය දිස්ත්‍රික්කවල ඩෙංගු රෝග ව්‍යාප්තිය ඉහළ මට්ටමක පවතින බව අනාවරණය වී ඇත.