SciELO - Scientific Electronic Library Online

 
vol.45 issue5Evidence of active herpesvirus 6 (variant-A) infection in patients with lymphadenopathy in Belém, Pará, BrazilHuman toxocariasis: incidence among residents in the outskirts of Campinas, State of São Paulo, Brazil author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Revista do Instituto de Medicina Tropical de São Paulo

Print version ISSN 0036-4665

Abstract

METHANITIKORN, Rungkanta; SUKONTASON, Kom; SUKONTASON, Kabkaew L.  and  PIANGJAI, Somsak. Evaluation of the formalin-Tween concentration technique for parasitic detection. Rev. Inst. Med. trop. S. Paulo [online]. 2003, vol.45, n.5, pp. 289-291. ISSN 0036-4665.  http://dx.doi.org/10.1590/S0036-46652003000500009.

The formalin-Tween sedimentation method was compared with the formalin-ether sedimentation for parasitic detection. Of a total 297 fecal specimens examined, 72.1% were positive. The formalin-tween technique was effective for ascertaining helminths, particularly Ascaris lumbricoides, Trichuris trichiura and hookworm eggs; however it has less capability for protozoa detection. This method is simple, inexpensive, less time consuming and highly sensitive when detecting the parasitic infection, particularly when focusing on helminth eggs.

Keywords : Formalin-tween; Concentration; Detection; Parasite.

        · abstract in Portuguese     · text in English     · pdf in English