Tahahadhari kutokana na aina mpya ya mbu Anopheles mijini Kenya

Watafiti wa Taasisi ya Utafiti wa Matibabu Kenya (KEMRI) wametoa tahadhari baada ya ugunduzi wa aina mpya ya mbu Anopheles katika maeneo ya mijini. Mbu huyu anapendelea mazingira ya binadamu na anaweza kuongeza hatari ya malaria mijini. Juhudi za ufuatiliaji zinaendelea katika kaunti kadhaa.

Mhudumu wa afya ya jamii William Omwansa anakusanya mayai ya mbu katika bwawa la Syokimau, Kaunti ya Machakos, akiwa na vifaa maalum kama kijiko na ndoo yenye kichujio. Amepewa mafunzo na KEMRI ili kutambua aina za mayai na kurekodi taarifa kwa utafiti. Mayai ya Anopheles huwa juu ya maji na hai sana, tofauti na aina nyingine, na huhifadhiwa kwenye mirija yenye kemikali kabla ya uchunguzi maabara.

Mbu aina ya Anopheles aligunduliwa kaskazini mwa Kenya katika Turkana na Marsabit, na inaaminika alikuingia kutoka Ethiopia. Asili yake ni Asia Kusini na Arabia, na uligunduliwa barani Afrika kwa mara ya kwanza Djibouti mwaka 2012, na kupelekea ongezeko la malaria huko. Tofauti na mbu wengine wa vijijini, huyu hupendelea maeneo ya mijini kama maeneo ya kuoshea magari na mitaro ya ujenzi.

Uwepo wake umethibitishwa katika kaunti kama Garissa, Wajir, Mandera, Lamu, Tana River na Kitui. Watafiti wa KEMRI wanazunguka kaunti 21 zilizo hatari. Sampuli hukaguliwa maabara Kisumu kwa teknolojia kama Polymerase Chain Reaction (PCR) ili kubaini aina na tabia zake.

Mradi wa AnoSTEP Afrika unachunguza athari zake dhidi ya kudhibiti malaria. “Hili linaweza kuwa tatizo kubwa ikiwa hatutachukua hatua mapema,” alisema mmoja wa watafiti. Wataalamu wanasisitiza usafi wa mazingira na kuondoa maji yaliyotuama ili kupunguza hatari.

Makala yanayohusiana

Illustration depicting a pregnant woman attracting mosquitoes due to specific scent compounds like octenol, with researchers studying the phenomenon in a lab.
Picha iliyoundwa na AI

Researchers explain why mosquitoes are drawn to pregnant women

Imeripotiwa na AI Picha iliyoundwa na AI

Researchers from institutions including Sweden's Swedish University of Agricultural Sciences (SLU) have discovered why certain women, especially pregnant ones, attract mosquitoes. They identified 27 chemical compounds in scent samples, with octenol playing a key role. The finding could improve mosquito traps and repellents.

Scientists from Georgia Tech and MIT have developed a mathematical model explaining how female Aedes aegypti mosquitoes navigate to humans. The study shows insects respond independently to dark visual cues and carbon dioxide rather than following each other. Findings could improve mosquito traps and disease control.

Imeripotiwa na AI

New research shows that malaria pushed early human populations away from high-risk areas in sub-Saharan Africa over the past 74,000 years. This fragmentation influenced genetic diversity and population structures. The study highlights disease as a key evolutionary force alongside climate.

Jakarta Deputy Governor Rano Karno warned residents of a potential dengue fever (DBD) surge due to the El Nino phenomenon in the second half of 2026. He made the remarks during a simultaneous community cleanup in West Jakarta on Sunday.

Imeripotiwa na AI

The Kenya Medical Research Institute is conducting groundbreaking research to develop a vaccine protecting newborns from infectious diseases contracted in hospitals shortly after birth. The initiative addresses rising concerns over hospital-acquired infections among infants, especially preterm or low-birth-weight ones who remain under medical observation for extended periods. If successful, KEMRI’s maternal vaccine could position Kenya as a leader in neonatal health innovation across Africa.

Researchers at the University of York have identified a protein called ESB2 that acts as a molecular shredder, enabling the African trypanosome parasite to evade the human immune system. The parasite, which causes sleeping sickness, uses ESB2 to precisely edit its genetic instructions in real time. This breakthrough solves a 40-year mystery in the parasite's biology.

Imeripotiwa na AI Imethibitishwa ukweli

University of Utah researchers report that iron-rich hemozoin crystals inside the malaria parasite Plasmodium falciparum move through the parasite’s digestive compartment because reactions involving hydrogen peroxide at the crystal surface generate chemical propulsion. The work, published in Proceedings of the National Academy of Sciences, links a long-observed phenomenon to peroxide chemistry and could point to new antimalarial drug strategies and ideas for engineered micro- and nanoscale devices.

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