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.
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Researchers explain why mosquitoes are drawn to pregnant women

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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.

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.

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Hong Kong will trial a “mosquito-to-control-mosquito” strategy next year, infecting male mosquitoes with bacteria to prevent their offspring from maturing, following the city’s first local dengue fever case in over a year. Director of Food and Environmental Hygiene Donald Ng Man-kit announced the plan on Sunday, saying the government would consider stepping up measures amid a rapid mosquito population rise this month.

Public health officers in Kwale County have issued a 28-day notice to a chicken farm in Kiteje Village to address complaints about bad odor and flies.

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The Kenya Wildlife Service (KWS) has warned Thika residents against handling or eating meat from a hyena killed by locals. The incident happened on Saturday morning in Kamenu Location, Thika West Sub-County, Kiambu County. KWS noted the hyena was scavenging on dumped poultry remains.

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