scholarly journals PEMANFAATAN TES CEPAT MOLEKULER (TCM) GENEXPERT SEBAGAI ALAT DIAGNOSTIK TB PARU DI RSUD WANGAYA KOTA DENPASAR

2020 ◽  
Vol 18 (3) ◽  
pp. 135-148
Author(s):  
Novianti Novianti ◽  
Oster Suriani Simarmata ◽  
Dina Bisara Lolong
Keyword(s):  
Public Health Problem ◽  
Multidrug Resistant ◽  
Rapid Diagnosis ◽  
Case Finding ◽  
Major Public Health Problem ◽  
Drug Resistant ◽  
Pulmonary Tb ◽  
Negative Results ◽  
The City ◽  
Positive Results

ABSTRACT Tuberculosis remains a major public health problem, with an estimated 9 million TB incidence cases, 300,000 of which are drug resistant TB cases and resulted in 1.5 million deaths worldwide in 2013. However, only 58% of new cases, TB cases were confirmed bacteriologically using WHO recommended test including the Xpert® MTB/RIF Rapid Diagnosis. The use of GeneXpert in Indonesia has existed since 2014 and has never been evaluated in its utilization, including in the city of Denpasar, namely in Wangaya Hospital as one of the recipients of the GeneXpert pulmonary TB diagnostic aid. The results of this study showed that the results of GeneXpert examination were much higher in the percentage of Positive TB Case Findings compared to microscopic examination so that there is an increase in the number of positive TB cases by 14.3%. The GeneXpert examination succeeded in giving positive results compared to the microscopic results showing negative results, which were sensitive Rifampicin (14.6%) and resistant Rifampicin (2.4%). However, the utilization of TB suspect examination with GeneXpert has not been maximized in increasing the number of TB patients suspected of having TB, in fact, the percentage of positive TB case finding compared to TB suspicion is increasing. Keywords:GeneXpert, rapid diagnosis of tuberculosis, pulmonary tuberculosis   ABSTRAK Tuberkulosis (TB) tetap menjadi masalah kesehatan masyarakat yang utama, diperkirakan telah terjadi 9 juta kasus insiden TB, 300.000 di antaranya adalah kasus TB multidrug resistant (TB MDR) dan mengakibatkan 1,5 juta kematian di seluruh dunia pada tahun 2013. Namun, baru 58% dari kasus baru, kasus TB dikonfirmasi secara bakteriologis menggunakan tes yang direkomendasikan oleh WHO termasuk Tes Cepat Molekuler (TCM) GeneXpert® MTB/RIF (Xpert). Pemanfaatan TCM GeneXpert di Indonesia ada sejak 2014 dan belum pernah dilakukan evaluasi dalam pemanfaatannya termasuk di Kota Denpasar yaitu di RSUD Wangaya sebagai salah satu penerima bantuan alat diagnostik TB Paru TCM GeneXpert. Hasil studi menunjukkan bahwa hasil pemeriksaan dengan TCM GeneXpert jauh lebih tinggi persentase penemuan kasus positif TBC dibanding dengan pemeriksaan mikroskopis sehingga terdapat peningkatan jumlah kasus positif TBC sebesar 14,3% di RSUD Wangaya pada tahun 2018.  Pemeriksaan TCM GeneXpert berhasil memberikan hasil yang positif di saat hasil pemeriksaan mikroskopis menunjukkan hasil negatif yaitu Rifampisin sensitif (14,6%) dan Rifampisin resisten (2,4%). Pemanfaatan pemeriksaan terduga TB dengan TCM GeneXpert belum maksimal dalam meningkatkan jumlah pemeriksaan pasien terduga TB Paru, walaupun persentase penemuan kasus positif TB dibanding terduga TB meningkat. Kata kunci: Tes cepat molekuler, geneXpert, tuberkulosis paru

scholarly journals Epidemiological Profile and Antimicrobial Resistance Pattern of Enteric Fever in a Tertiary Care Hospital of North India – a Seven Year Ambispective Study

2018 ◽  
Vol 61 (4) ◽  
pp. 125-130 ◽  
Author(s):  
Anuradha Makkar ◽  
Shilpi Gupta ◽  
Inam Danish Khan ◽  
Rajiv Mohan Gupta ◽  
KS Rajmohan ◽  
...  
Keyword(s):  
Public Health ◽  
Enteric Fever ◽  
Tertiary Care Hospital ◽  
Tertiary Care ◽  
Public Health Problem ◽  
Multidrug Resistant ◽  
North India ◽  
Major Public Health Problem ◽  
Care Hospital ◽  
Drug Resistant

Introduction: Enteric-fever is a major public-health problem in developing countries emerging as multidrug-resistant, Nalidixic-acid resistant and extremely drug-resistant Salmonella (Pakistan, 2016), has intensified the use of WHO watch/reserve group antimicrobials such as azithromycin and meropenem. Methods: This ambispective-study was conducted on 782 non-repeat blood-culture isolates of S. Typhi, S. Paratyphi A and S. Paratyphi B obtained from 29,184 blood cultures received at a 1000-bedded tertiary-care hospital of North-India from 2011–2017. Identification and antibiograms were obtained by Vitek-2 compact and Kirby-Bauer’s disc diffusion with resistance to ampicillin, chloramphenicol and cotrimoxazole being labeled as multidrug-resistant. Decreased ciprofloxacin-susceptibility and ciprofloxacin-resistance were defined as MIC 0.125–0.5 and >1 μg/ml. Results: S. Typhi and S. Paratyphi A in a ratio of 3.9:1 were seen between July–September predominantly distributed between 6–45 year age group. Resistance to co-trimoxazole, chloramphenicol, ceftriaxone and azithromycin was 6.1%, 13.8%, 16.1 and 5.78% respectively. Multidrug-resistant S. typhi and S. paratyphi A were 2.73% and 1.91% respectively. Conclusion: Enteric-fever is a major public-health problem in India. Emergence of multidrug-resistant, Nalidixic-acid resistant and extremely-drug resistant Salmonella mandates ongoing surveillance for targeted empirical therapy and containment of spread. Repeated epidemics call for water, sanitation, hygiene and vaccination strategies to sustain herd-immunity.

scholarly journals Early detection of Pre-XDR TB with line probe assay in a high TB burden country

2021 ◽  
Vol 21 (3) ◽  
pp. 968-974
Author(s):  
Laura Madukaji ◽  
Isaac Okohu ◽  
Saheed Usman ◽  
Uche Oyedum ◽  
Abdullah Enagi ◽  
...  
Keyword(s):  
Public Health Problem ◽  
Multidrug Resistant ◽  
Major Public Health Problem ◽  
Drug Resistant ◽  
Line Probe Assay ◽  
North Central ◽  
Resistant Tuberculosis ◽  
Mdr Tb ◽  
Probe Assay ◽  
And Control

Background: Worldwide, tuberculosis (TB) is one of the top 10 causes of death. Drug resistant tuberculosis has lately become a major public health problem that threatens progress made in Tuberculosis (TB) care and control worldwide. The aim of this study was to determine the prevalence of Pre-extensive drug resistant TB among MDR TB in North Central of Nigeria. Methods: This study was conducted from October, 2018 to August, 2019 with 150 samples. In Nigeria, guidelines for DR-TB as recommended by WHO is followed. All the samples from the patients who gave their consent were transported to a zonal reference TB laboratory (ZRL). Results: Mean age was 38.6 ± 13.4 years with peak age at 35-44. Out of these 103 samples processed with LPA, 101(98%) were rifampicin resistant and 2 were rifampicin sensitive, 99(96%) were INH resistant and 4 (4%) were INH sensitive, 5(5%) were fluoroquinolone resistant, 98(95%) were fluoroquinolone sensitive, 12 (12%) were Aminoglycoside + Capreomycin resistant, 91(83%) were Aminoglycoside + Capreomycin sensitive. Conclusion: Multidrug resistant TB and its severe forms (Pre-extensive & extensively drug resistant TB) can be detected early with rapid tool- Line Probe Assay rapid and prevented timely by early initiation on treatment. Keywords: Pre-XDR TB; line probe assay in a high TB burden country.

scholarly journals Drug-resistant TB prevalence study in 5 health institutions in Haiti

PLoS ONE ◽  
2021 ◽  
Vol 16 (3) ◽  
pp. e0248707
Author(s):  
Jonathan Hoffmann ◽  
Carole Chedid ◽  
Oksana Ocheretina ◽  
Chloé Masetti ◽  
Patrice Joseph ◽  
...  
Keyword(s):  
Public Health Problem ◽  
Molecular Techniques ◽  
Prevalence Study ◽  
Multi Drug Resistance ◽  
Major Public Health Problem ◽  
Drug Resistant ◽  
Cross Sectional ◽  
Pulmonary Tb ◽  
Mdr Tb ◽  
Resistant Strains

Objectives Tuberculosis (TB) is the leading infectious cause of death in the world. Multi-drug resistant TB (MDR-TB) is a major public health problem as treatment is long, costly, and associated to poor outcomes. Here, we report epidemiological data on the prevalence of drug-resistant TB in Haiti. Methods This cross-sectional prevalence study was conducted in five health centers across Haiti. Adult, microbiologically confirmed pulmonary TB patients were included. Molecular genotyping (rpoB gene sequencing and spoligotyping) and phenotypic drug susceptibility testing were used to characterize rifampin-resistant MTB isolates detected by Xpert MTB/RIF. Results Between April 2016 and February 2018, 2,777 patients were diagnosed with pulmonary TB by Xpert MTB/RIF screening and positive MTB cultures. A total of 74 (2.7%) patients were infected by a drug-resistant (DR-TB) M. tuberculosis strain. Overall HIV prevalence was 14.1%. Patients with HIV infection were at a significantly higher risk for infection with DR-TB strains compared to pan-susceptible strains (28.4% vs. 13.7%, adjusted odds ratio 2.6, 95% confidence interval 1.5–4.4, P = 0.001). Among the detected DR-TB strains, T1 (29.3%), LAM9 (13.3%), and H3 (10.7%) were the most frequent clades. In comparison with previous spoligotypes studies with data collected in 2000–2002 and in 2008–2009 on both sensitive and resistant strains of TB in Haiti, we observed a significant increase in the prevalence of the drug-resistant MTB Spoligo-International-Types (SIT) 137 (X2 clade: 8.1% vs. 0.3% in 2000–02 and 0.9% in 2008–09, p<0.001), 5 (T1 clade: 6.8% vs 1.9 in 2000–02 and 1.7% in 2008–09, P = 0.034) and 455 (T1 clade: 5.4% vs 1.6% and 1.1%, P = 0.029). Newly detected spoligotypes (SIT 6, 7, 373, 909 and 1624) were also recorded. Conclusion This study describes the genotypic and phenotypic characteristics of DR-TB strains circulating in Haiti from April 2016 to February 2018. Newly detected MTB clades harboring multi-drug resistance patterns among the Haitian population as well as the higher risk of MDR-TB infection in HIV-positive people highlights the epidemiological relevance of these surveillance data. The importance of detecting RIF-resistant patients, as proxy for MDR-TB in peripheral sites via molecular techniques, is particularly important to provide adequate patient case management, prevent the transmission of resistant strains in the community and to contribute to the surveillance of resistant strains.

scholarly journals First line anti-tubercular drug resistance among patients visiting German Nepal Tuberculosis Project, Nepal

2013 ◽  
Vol 2 (2) ◽  
pp. 45-48
Author(s):  
S Regmi ◽  
B Shrestha ◽  
A Katuwal
Keyword(s):  
Drug Resistance ◽  
Public Health Problem ◽  
Drug Susceptibility ◽  
Multidrug Resistant ◽  
Sputum Smear ◽  
Major Public Health Problem ◽  
Drug Resistant ◽  
First Line ◽  
Drug Resistant Tuberculosis ◽  
Resistant Tuberculosis

INTRODUCTION: Tuberculosis is one of the commonest causes of death in the world. It remains a major public health problem in developing countries including Nepal. Despite the reduction in incidence of tuberculosis by the implementation of anti-tuberculosis drugs regimen, TB remains pandemic due to emergence of drug resistant strain of M. tuberculosis. The aim of this study was to evaluate the first line anti-tubercular drug resistance among patients visiting German Nepal Tuberculosis Project, Nepal. MATERIALS AND METHODS: Anti-tubercular drug susceptibility test for first line drugs (Rifampicin, Isonizid, Ethambutol, and Streptomycin) was performed by proportion method (n=141) for new sputum smear positive patients attending German Nepal Tuberculosis Project, Kathmandu, Nepal. RESULTS: 78.1% (n=110.) were sensitive to all 4 drugs. Eight isolates (5.6%), 4(2.8%), 10(7.1%) and 31(21.9%) were resistant to any 4, 3, 2 and 1 drug respectively. Proportion of drug resistant (PDR) to one drug was 12.6%, two drugs 7.6%, three drugs (6.3%) and four drugs was 5.6%. Our result indicates the PDR to the first line drug was 21.9% and multidrug resistant (MDR) was 12 (8.5%). CONCLUSIONS: Drugs resistant cases of tuberculosis in increasing. Surveillance and monitoring of the drug resistant tuberculosis is necessary to prevent emergence of MDR, extensively drug resistant and so-called totally drug resistant tuberculosis.  DOI: http://dx.doi.org/10.3126/ijim.v2i2.8321   Int J Infect Microbiol 2013;2(2):45-48

scholarly journals Nearly Identical Plasmids Encoding VIM-1 and Mercury Resistance in Enterobacteriaceae from North-Eastern Germany

2021 ◽  
Vol 9 (7) ◽  
pp. 1345
Author(s):  
Stefan E. Heiden ◽  
Katharina Sydow ◽  
Stephan Schaefer ◽  
Ingo Klempien ◽  
Veronika Balau ◽  
...  
Keyword(s):  
Resistance Gene ◽  
Bacterial Species ◽  
Genomic Analysis ◽  
Public Health Problem ◽  
Multidrug Resistant ◽  
Mercury Resistance ◽  
Major Public Health Problem ◽  
Eastern Germany ◽  
North Eastern ◽  
Resistance Plasmids

The emergence of carbapenemase-producing Enterobacteriaceae limits therapeutic options and presents a major public health problem. Resistances to carbapenems are mostly conveyed by metallo-beta-lactamases (MBL) including VIM, which are often encoded on resistance plasmids. We characterized four VIM-positive isolates that were obtained as part of a routine diagnostic screening from two laboratories in north-eastern Germany between June and August 2020. Whole-genome sequencing was performed to address (a) phylogenetic properties, (b) plasmid content, and (c) resistance gene carriage. In addition, we performed phenotypic antibiotic and mercury resistance analyses. The genomic analysis revealed three different bacterial species including C. freundii, E. coli and K. oxytoca with four different sequence types. All isolates were geno- and phenotypically multidrug-resistant (MDR) and the phenotypic profile was explained by the underlying resistance gene content. Three isolates of four carried nearly identical VIM-1-resistance plasmids, which in addition encoded a mercury resistance operon and showed some similarity to two publicly available plasmid sequences from sources other than the two laboratories above. Our results highlight the circulation of a nearly identical IncN-type VIM-1-resistance plasmid in different Enterobacteriaceae in north-eastern Germany.

scholarly journals Seasonal variation of hepatitis A virus infection in the city of Rio de Janeiro, Brazil

2002 ◽  
Vol 44 (5) ◽  
pp. 289-292 ◽  
Author(s):  
Livia Melo VILLAR ◽  
Vanessa Salete DE PAULA ◽  
Ana Maria Coimbra GASPAR
Keyword(s):  
Seasonal Variation ◽  
Rio De Janeiro ◽  
Hepatitis A ◽  
Hepatitis A Virus ◽  
Public Health Problem ◽  
Oral Route ◽  
Major Public Health Problem ◽  
Commercial Enzyme Immunoassay ◽  
National Reference Center ◽  
The City

Hepatitis A virus (HAV) infection constitutes a major public health problem in Brazil. The transmission of HAV is primarily by fecal-oral route so the water is an important vehicle of HAV dissemination. There is a great incidence of acute cases of hepatitis A in some areas of Brazil however the seasonal variation of these cases was not documented. The aim of this study was to determine the seasonality of HAV infection in Rio de Janeiro. From January 1999 to December 2001, 1731 blood samples were collected at the National Reference Center for Hepatitis Viruses in Brazil (NRCHV). These samples were tested by a commercial enzyme-immunoassay to detect anti-HAV IgM antibodies. Yearly positive rates were 33.74% in 1999, 32.19% in 2000, and 30.63% in 2001. A seasonal variation was recognized with the highest incidence in spring and summer. Furthermore a seasonal increase in incidence of HAV infection was found during the rainy season (December to March) because the index of rains is very high. It is concluded that HAV infections occur all year round with a peak during hot seasons with great number of rains.

scholarly journals Antimicrobial Activity of Ceftazidime-Avibactam Tested against Multidrug-Resistant Enterobacteriaceae and Pseudomonas aeruginosa Isolates from U.S. Medical Centers, 2013 to 2016

2017 ◽  
Vol 61 (11) ◽  
Author(s):  
Helio S. Sader ◽  
Mariana Castanheira ◽  
Dee Shortridge ◽  
Rodrigo E. Mendes ◽  
Robert K. Flamm
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Multidrug Resistant ◽  
Drug Resistant ◽  
Large Collection ◽  
Content Type ◽  
Negative Results ◽  
Medical Centers ◽  
Extensively Drug Resistant ◽  
Genes Encoding

ABSTRACT The in vitro activity of ceftazidime-avibactam and many comparator agents was determined against various resistant subsets of organisms selected among 36,380 Enterobacteriaceae and 7,868 Pseudomonas aeruginosa isolates. The isolates were consecutively collected from 94 U.S. hospitals, and all isolates were tested for susceptibility by reference broth microdilution methods in a central monitoring laboratory (JMI Laboratories). Enterobacteriaceae isolates resistant to carbapenems (CRE) and/or ceftazidime-avibactam (MIC ≥ 16 μg/ml) were evaluated for the presence of genes encoding extended-spectrum β-lactamases and carbapenemases. Ceftazidime-avibactam inhibited >99.9% of all Enterobacteriaceae at the susceptible breakpoint of ≤8 μg/ml and was active against multidrug-resistant (MDR; n = 2,953; MIC50/90, 0.25/1 μg/ml; 99.2% susceptible), extensively drug-resistant (XDR; n = 448; MIC50/90, 0.5/2 μg/ml; 97.8% susceptible), and CRE (n = 513; MIC50/90, 0.5/2 μg/ml; 97.5% susceptible) isolates. Only 82.2% of MDR Enterobacteriaceae (n = 2,953) and 64.2% of ceftriaxone-nonsusceptible Klebsiella pneumoniae (n = 1,063) isolates were meropenem susceptible. Among Enterobacter cloacae (22.2% ceftazidime nonsusceptible), 99.8% of the isolates, including 99.3% of the ceftazidime-nonsusceptible isolates, were ceftazidime-avibactam susceptible. Only 23 of 36,380 Enterobacteriaceae (0.06%) isolates were ceftazidime-avibactam nonsusceptible, including 9 metallo-β-lactamase producers and 2 KPC-producing strains with porin alteration; the remaining 12 strains showed negative results for all β-lactamases tested. Ceftazidime-avibactam showed potent activity against P. aeruginosa (MIC50/90, 2/4 μg/ml; 97.1% susceptible), including MDR (MIC50/90, 4/16 μg/ml; 86.5% susceptible) isolates, and inhibited 71.8% of isolates nonsusceptible to meropenem, piperacillin-tazobactam, and ceftazidime (n = 628). In summary, ceftazidime-avibactam demonstrated potent activity against a large collection (n = 44,248) of contemporary Gram-negative bacilli isolated from U.S. patients, including organisms resistant to most currently available agents, such as CRE and meropenem-nonsusceptible P. aeruginosa.

scholarly journals SEROPREVALENCE OF CHAGASIC INFECTION IN YOUNG INDIVIDUALS IN A BLOOD CENTER IN THE STATE OF SAO PAULO, BRAZIL

2013 ◽  
Vol 55 (4) ◽  
pp. 245-250 ◽  
Author(s):  
Elaine Cristina Navarro ◽  
Renata Leme Goto ◽  
Isabella Silva Ricoboni ◽  
Jose Eduardo Corrente ◽  
Rita Maria Saccomano Henriques ◽  
...  
Keyword(s):  
Public Health ◽  
Chagas Disease ◽  
Blood Donors ◽  
Public Health Problem ◽  
Sao Paulo ◽  
São Paulo ◽  
Blood Center ◽  
Negative Results ◽  
Central Regions ◽  
The City

SUMMARY This study aimed at estimating the number of cases of non-negative serological reactions to Chagas disease in blood donors at the Blood Center of Botucatu, São Paulo, Brazil, from 2003 to 2010 and at relating them to their cities of origin. Five hundred and seventy-four non-negative results for Chagas disease were evaluated. Of these, 371 (64.8%) were reagent, and 203 (35.4%) were inconclusive. The prevalence of Chagas disease in blood donors was 0.05%. There were, on average, 72 cases/year, and a prevalence of males was observed (64.8%). Forty-three (7.49%) individuals were 18 to 30 years old; 92 (16.02%) were 31 to 40; 147 (25.61%) 41 to 50, and 292 (50.87%) were older than 50 years. It was observed that 29.3% of females with reagent serology were at their fertile age (18 and 45 years). The majority of donors were originally from cities in the southwestern and central regions of São Paulo, but individuals from other states contributed with 20%. The provenance of most donors was the city of Botucatu/SP, followed by the city of Taquarituba/SP. Therefore, the profile of donors at this blood center favors the occurrence of a larger number of non-negative serological reactions. Although there has been a significant reduction in the number of new cases/year for this disease, it is still a public-health problem, and results suggest the need for new epidemiological assessments in the studied region.

scholarly journals Multidrug-resistant typhoid fever: a review

2011 ◽  
Vol 5 (05) ◽  
pp. 324-337 ◽  
Author(s):  
Syed Ahmed Zaki ◽  
Sunil Karande
Keyword(s):  
Public Health ◽  
Typhoid Fever ◽  
English Language ◽  
Public Health Problem ◽  
Public Health Education ◽  
Abdominal Distension ◽  
Clinical Results ◽  
Multidrug Resistant ◽  
Major Public Health Problem ◽  
Handling Practices

Introduction: Multidrug-resistant typhoid fever (MDRTF) is defined as typhoid fever caused by Salmonella enterica serovar Typhi strains (S. Typhi), which are resistant to the first-line recommended drugs for treatment such as chloramphenicol, ampicillin and trimethoprim-sulfamethoxazole. Since the mid-1980s, MDRTF has caused outbreaks in several countries in the developing world, resulting in increased morbidity and mortality, especially in affected children below five years of age and those who are malnourished. Methodology: Two methods were used to gather the information presented in this article. First PubMed was searched for English language references to published relevant articles. Secondly, chapters on typhoid fever in standard textbooks of paediatric infectious diseases and preventive and social medicine were reviewed. Results: Although there are no pathognomonic clinical features of MDRTF at the onset of the illness, high fever ( > 104°F), toxaemia, abdominal distension, abdominal tenderness, hepatomegaly and splenomegaly are often reported. The gold standard for the diagnosis of MDRTF is bacterial isolation of the organism in blood cultures. Ciprofloxacin and ceftriaxone are the drugs most commonly used for treatment of MDRTF and produce good clinical results. Conclusion: MDRTF remains a major public health problem, particularly in developing countries. Mass immunization in endemic areas with either the oral live attenuated Typhi 21a or the injectable unconjugated Vi typhoid vaccine, rational use of antibiotics, improvement in public sanitation facilities, availability of clean drinking water, promotion of safe food handling practices and public health education are vital in the prevention of MDRTF. 

scholarly journals Antimalarial Activities of Peptide Antibiotics Isolated from Fungi

2001 ◽  
Vol 45 (1) ◽  
pp. 145-149 ◽  
Author(s):  
G. Nagaraj ◽  
M. V. Uma ◽  
M. S. Shivayogi ◽  
Hemalatha Balaram
Keyword(s):  
High Performance ◽  
Public Health Problem ◽  
Chemotherapeutic Agents ◽  
Major Public Health Problem ◽  
Drug Resistant ◽  
Peptide Antibiotics ◽  
Mass Spectral Analysis ◽  
Mass Spectral ◽  
Micromolar Range

ABSTRACT Malaria caused by Plasmodium falciparum is a major public health problem in the developing countries of the world. Clinical treatment of malaria has become complicated due to the occurrence of infections caused by drug resistant parasites. Secondary metabolites from fungi are an attractive source of chemotherapeutic agents. This work reports the isolation and in vitro antiplasmodial activities of peptide antibiotics of fungal origin. The three peptide antibiotics used in this study were efrapeptins, zervamicins, and antiamoebin. The high-performance liquid chromatography-purified peptides were characterized by nuclear magnetic resonance and mass spectral analysis. All three fungal peptides kill P. falciparum in culture with 50% inhibitory concentrations in the micromolar range. A possible mode of action of these peptide antibiotics on P. falciparum is presented.

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