Sensitivity and specificity of the Asan Easy Malaria P.f/P.v tests (made by Asan Korean Company) in the diagnosis of P. falciparum and P.vivax malaria was investigated compared to Giemsa microscopy and re-checked by PCR technique. A total of 283 tests were conducted in the provinces of Lai Chau, Quang Binh and Binh Phuoc, and 90 other ones were carried out with cultured P. falciparum at the laboratories of the National Institute of Malariology, Parasitology and Entomology. The different results were found with two method as 111 positive cases were confirmed by Giemsa staining (59 P.falciparum and 54 P.vivax), while only 94 positive tests (53 P.falciparum and P.vivax) were determined by Asan. The samples with different results by two methods were re-cheked by PCR technique for confimation. The sensitivity and specificity of Asan tests in Plasmodium species detection were 97.8 and 89.9%, respectively, in general, and 99.0% and 91.2% in diagnosis of P falciparum, and 75.9% and 97% of P. vivax, in particular. However, in the following-up period (2-3 days), both methods showed the same results of parasite re-examination
Malaria ; Diagnosis ; Malaria, Vivax

The evaluation of test Paracheck P.f for malaria fast diagnosis was conducted at three levels (provincial hospital, district hospital and commune health stations) in Ninh Thuan province between July 2002 and March 2003. Results showed that: the positive rate of Paracheck-Pf was 19.5% against the positive slide rate (PSR) of P.faciparum was 7.7% at provincial hospital level. The positive rate of Paracheck-Pf was 19.2% against the PSR of P.falciparum was 14.6% by microscopy at district hospital level. The positive rate of Parachec-Pf was 13.6% against the PSR of P.falciparum by microscopy was 14.2% at commune health stations. Paracheck-Pf was found to have the sensitivity of 93.8% and the specificity of 86.5% at the provincial hospital, 92.8% and 94.1%, respectively at the district hospital, and 90.6% and 99.7%, respectively at commune health stations
malaria ; diagnosis ; malaria, falciparum

Testing in 127 patients with malaria at the Center of Malariological- Parasitological - Entomological prevention and control and hospitals in A Luoi, Nam Dong, Phu Loc, Huong Thuy, Huong Tra, Phong Dien, Phu Vang districts and Hue city with 2 types: Giemsa staining and Parachek P.F technique. Results showed that: 40 positive samples with P.fal and 87 negative samples. Results of the 2 methods were similar
Malaria ; Antimalarials ; diagnosis ; Malaria, Falciparum

486 case-record files of malaria patients admitted to Tropical Disease hospital, of mahidol University, Bangkok,Thai land from November 1st, 1999 to December 31st 1999. P.falciparum and P.vivax are most popular parasitic species. The personal history of malaria also affect to disease. The incidences of nausea, vomitting, abdominal pain and hepatomegaly in falciparum malaria were higher than those in vivax malaria patients in restrospective. It was noted that, Gl symptoms were th most common findings in severe and complicated malaria
Malaria ; Endoscopes, Gastrointestinal ; Malaria, Falciparum ; diagnosis ;

The changes of susceptibility to chloroquine associated with mutations at 76 point of transporter membrane gene (P.fcrt) and at 86 point of multi-drug resistant 1 gene (P.fmdr-1) of P.falciparum were investigated by nested PCR. Analysis of 113 P.falciparum blood samples collected from the malaria patients in the Farm No11 of Phu Rieng Rubber Company in Binh Phuoc province in October 2002. The results showed that: at76 point of P.fcrt gene, 58 samples (51%) were wild type, 24 samples (21%) were mutated type and 31 samples (28%) were mixture of wild and mutated type. At 86 point of P.fmdr-1 gene, 3 samples of mixed wild and mutated type (2.7%), 110 samples of wild type (97.3%) and non of mutated type samples
malaria ; malaria, falciparum ; Chloroquine ; diagnosis ; mutation ; genes

In December 2002, 445 households and 1832 individuals of Khanh Trung commune were interviewed and examined in a cross-sectional survey (approximately 85% inhabitants of the commune). The results showed that: The slide positive rate was 10.1%. The rate of asymptomatic malaria carriers was 77.2% of total malaria confirmed cases. There is a relation between people with sleeping in the forest and people without sleeping in its, OR=1.89, P=0.001. Ethnic group of Ra-glai infected with malaria (11.1%) and the age group which had highest rate of asymptomatic malaria was 5-9 years old 11.2%. Parasite density index of asymptomatic malaria group was lower than that of the fever malaria group
Malaria ; epidemiology ; disease ; diagnosis

Cross-sectional survey on the effectiveness of the Parascheck Pf tests for malaria rapid diagnosis was carried out in all people lived in malaria areas in the Central and Highland of Vietnam. Comparision of the sensitivity, the specificity, the value of negative prediction and the accuracy of the Paracheck Pf tests between 4 different geographical zones and 2 different malaria areas (stable and unstable malaria areas) showed that there was no significant difference. The rapid Paracheck Pf tests have the sensitivity, specificity, the value of positive and negative prediction and the accuracy of 95.8%, 98.1%, 74.3%, 99.7% and 97.9%, respectively
Malaria ; Therapeutics ; diagnosis

Malarial statistic data of at HungYen provincial Center of Preventive Medicine shown an incidence of 0,118% of population in the year 2001 and 0,08% in 2002, parasitic rate of 0,68% in 2001 and 0,49% in 2002. All clinical cases and parasitically confirmed cases were infected from the endemic areas , of South Vietnam. Malarial parasite was determined only on laboratories at the level of province and district. At basic level health stations, malarial patients and persons who arrived from endemic regions were not carefully managed
Malaria ; diagnosis ; Therapeutics ;

During the year 2003 and four months of 2004, 5223 blood slides were collected from Ea Sup district and examined for malaria parasite in 343 positive slides, of which 2.089 negatives and 120 positives were sent from the district microscope points for double checking at the Provincial Malaria Center. The incorrectness at district level was found to be 3,11% with the following common mistakes: P.falciparum infection was mistaken to negative: 27.69%, negatives and P.vivax infection mistaken to P.falciparum infection: 24.41%. P.vivax infection mistaken to negative 13.38%. The incorrectness rates varied from point to point showing the different qualification at each microscope point: Ya Tmot: 2.51%; Ea Roc: 1.57%; Ea Le: 2.58%, Cu Kbang: 6.15%, Cu Mlan: 5.81% and Ya Lop: 3.09%
Microscopy ; diagnosis ; blood ; malaria ;

All of 8 villages of Lam Thuy and Ngan Thuy communes are high malaria endemic areas. The slide positive rates (SPR) in Lam Thuy and Ngan Thuy are 11.56% and 36.20% respectively; P. falciparum positive rates are 72.50% and 67.80%; Parasite positive rates in children at 1-5 years old are 45.00% and 32.20%. Habit of sleeping without bed net of the local population and unfectioning microscopic points have made the malaria situation higher in these two communes. Anopheline component in Km 14 village, Ngan Thuy commune, Le Thuy district is abundant (19 species): with the presentation of the two main malaria vectors An.dirus and An.minimus. The landscape in this area is suitable for the production and development of two main malaria vectors as well as other anopheline mosquitoes
Malaria ; mosquitoes ; diagnosis ; Anopheles