Aceste căpuşe minuscule au opt picioare, sunt înrudite cu păianjenii şi arată ca un cornet de îngheţată, cu picioare robuste la unul dintre capete.
Un studiu recent a dezvăluit faptul că organismele, invizibile cu ochiul liber, erau prezente în procent de 100% în rândul oamenilor testaţi.
Denumite „Demodex”, ele trăiesc în foliculii piloşi, îngropate cu capul în piele şi hrănindu-se cu substanţele uleioase secretate de aceasta, arată Mediafax.
Oamenii sunt gazde pentru două specii de căpuşe microscopice – Demodex folliculorum şi Demodex brevis.
În trecut, cercetătorii credeau că aceste microorganisme, care fac parte din familia acarienilor, colonizau feţele a peste 85% din totalul oamenilor de pe Terra.
În testele ADN realizate pe 29 de persoane, 100% dintre aceşti voluntari în vârstă de 18 ani s-au dovedit a fi purtători de căpuşe Demodex.
O serie de teste ulterioare, realizate pe alţi voluntari, au furnizat acelaşi procent de 100% referitor la prezenţa căpuşelor pe feţele persoanelor monitorizate.
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