5 Scientific Studies of Bacteria’s of Roaches
This post will reveal 5 scientific studies on roaches and the bacteria’s, viruses and pathogens they carry on there bodies, in their excrement and in there bodies.
ISOLATION OF GRAM-NEGATIVE BACTERIA FROM COCKROACHES TRAPPED FROM URBAN ENVIRONMENT
Nuntaree Chaichanawongsaroj, Kaunjeera Vanichayatanarak, Thapanee Pipatkullachat,
Mongkol Polrojpanya and Srivitta Somkiatcharoen
Department of Transfusion Medicine, Faculty of Allied Health Sciences, Chulalongkorn University,
Abstract. Three different areas — hospital, food-handling establishments and human dwellings, were surveyed for pathogenic gram-negative bacteria carried on the cuticles of cockroaches.
Fifty species of bacteria were identified from all cockroaches. Escherichia coli, Klebsiella pneumoniae, Citrobacter freundii and Enterobacter cloacae were the most frequently found. Pathogenic and potentially pathogenic bacteria represented 58% of all bacteria identified.
The numbers of pathogenic and potentially pathogenic bacteria were similar in hospital areas and food-handling establishments, while, human dwellings possessed a poorer bacterial flora. E. coli, K. pneumoniae and E. cloacae were dominant species in hospital areas, while in food-handling establishments and human dwellings, E. coli, K.
pneumoniae and C. freundii predominated.
Therefore, cockroaches can play a role in bacterial transmission, due to the bacteria carried on their cuticles. http://www.tm.mahidol.ac.th/seameo/2004_35_3/32-3232.pdf
Antibiotic resistant-bacteria associated with the cockroach, Periplaneta americana collected from different habitat in Egypt.
Abstract: An investigation concerning external and midgut bacteria associated with cockroaches isolated fromhousehold and sewage was carried out. Blood agar medium was the most suitable medium for isolation of bacteria from household species. On the other hand, several types of media such as blood agar, Littman oxgall agar, brain heart infusion in addition to nutrient agar were good media for isolation of bacteria from swage species.
Bacillus and Streptococcus species recorded the highest percentage ratio between isolated bacterial from whole body and midgut of household cockroach; 38 and 36.92%, respectively. Alcaligenes faecalis, Serratia liquefaciens, Streptococcus faecalis, Streptococcus durans and Listeria seeligeri were ecological type isolated from sewage only.
[Kotb M. Hammad and Hesham M. Mahdy. Antibiotic resistant-bacteria associated with the cockroach, Periplaneta americana collected from different habitat in Egypt. N Y Sci J 2012;5(12):198-206]. (ISSN: 1554-0200). http://www.sciencepub.net/newyork.
Isolation of Intestinal Parasites of Public Health Importance from Cockroaches (Blattella germanica) in Jimma Town, Southwestern Ethiopia
Haji Hamu,1 Serkadis Debalke,1 Endalew Zemene,1 Belay Birlie,2
Zeleke Mekonnen,1 and Delenasaw Yewhalaw3
1 Department of Medical Laboratory Sciences and Pathology, College of Public Health and Medical Sciences,Jimma University, Jimma, Ethiopia
2Department of Statistics, College of Natural Sciences, Jimma University, Jimma, Ethiopia
3Department of Biology, College of Natural Sciences, Jimma University, Jimma, Ethiopia
Correspondence should be addressed to Delenasaw Yewhalaw; firstname.lastname@example.org
Received 5 August 2013; Accepted 9 November 2013; Published 4 February 2014
Academic Editor: Jose´e F. Silveira.
Copyright © 2014 Haji Hamu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Cockroaches are claimed to be mechanical transmitters of disease causing microorganisms such as intestinal parasites, bacteria, fungi, and viruses.
This study assessed the potential of the German cockroach Blattella germanica in the mechanical transmission of intestinal parasites of public health importance. A total of 2010 cockroaches were collected from 404 households in Jimma Town,southwestern Ethiopia.
All the collected cockroaches were identified to species as B. germanica. The contents of their gut and external body parts were examined for the presence of intestinal parasites. Overall, 152 (75.6%) of the 210 batches were found to harbor at least one species of human intestinal parasite. Ascaris lumbricoides, Trichuris trichiura, Taenia spp, Strongyloideslike parasite, Entamoeba histolytica/dispar/moshkovski, Giardia duodenalis and Balantidium coli were detected from gut contents.
Moreover, parasites were also isolated from the external surface in 22 (10.95%) of the batches. There was significant difference in parasite carriage rate of the cockroaches among the study sites ( = 0.013). In conclusion, B. germanica was found to harbor intestinal parasites of public health importance. Hence, awareness on the potential role of cockroaches in the mechanical transmission of human intestinal parasites needs to be created. Moreover, further identification of the Strongyloides-like worm is required using molecular diagnostics.
Investigation on American cockroaches medically important bacteria in Khorramshahr hospital, Iran
Hamid Kassiri1*, Ali Kassiri2, Shahnaz Kazemi3
1Health Faculty, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
2Medicine Faculty, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
3Khorramshahr Health Center, Ahvaz Jundishapur University of Medical Sciences, Khorramshahr, Iran
Vali-e-Asr hospital, which was done in 2008. Methods: In this descriptive cross-sectional study, 20 American cockroaches were caught via dbiyr esctat ncdoallredc ptiroonc.e Mduerdeisc.a lly important bacteria were extracted from their outer surface of bodies Results: Culturing outer surface wash of cockroaches resulted in the separation of Klebsiella,
Pseudomonas, Escherichia coli, Staphylococcus, Proteus and Streptococcus. The main common babacotuetr 9ia0 were Klebsiella (35%) and Pseudomonas (30%). Also, results of culture media showed that % of cockroaches infected to at least one bacterium. Conclusions: American cockroaches can transmit pathogenic and potential pathogenic bacteria, pthlaenresf oinre p tuhrepior sper teos ecnocmeb iant thhoesspei tpaelss tms ainy tbhee ah ossapniittaaltsi.on challenge
Cockroaches as carriers of bacteria in multi-family dwellings
A. Cloarec, C. Rivault, F. Fontaine, and A. Le Guyader
The potential risk of bacterial dissemination due to the presence of cockroaches (Blattella germanica, Blattellidae) in low-income flats was investigated. Cockroaches can carry a great variety of bacterial species; we identified 30 different species from 52 different flats. Klebsiella oxycytoca, K. pneumoniae and Enterobacter cloacae were the most frequently found. Pathogenic and potentially pathogenic bacteria represented 54% of all the bacterial identifications.
Bacteria were carried either on the cuticle or in the gut. Contamination through external contact is sufficient to insure bacterial diffusion. There was a very low level of overlap estimated by Pianka’s index (a) between the bacterial flora of neighbouring blocks of flats, and (b) between bacterial flora of different flats in the same block.