• Parasites, Hosts and Diseases
• /
• 제52권2호
• /
• pp.177-181
• /
• 2014

Cockroaches are abundant in Nigeria and are seen to harbour an array of pathogens. Environmental and sanitary conditions associated with demographic/socio-economic settings of an area could contribute to the prevalence of disease pathogens in cockroaches. A total of 246 cockroaches (Periplaneta americana) in urban (Benin, n=91), semi-urban (Ekpoma, n=75) and rural (Emuhi, n=70) settings in Edo State, Nigeria were collected within and around households. The external body surfaces and alimentary canal of these cockroaches were screened for bacterial, fungal, and parasitological infections. Bacillus sp. and Escherichia coli were the most common bacteria in cockroaches. However, Enterococcus faecalis could not be isolated in cockroaches trapped from Ekpoma and Emuhi. Aspergillus niger was the most prevalent fungus in Benin and Ekpoma, while Mucor sp. was predominant in Emuhi. Parasitological investigations revealed the preponderance of Ascaris lumbricoides in Benin and Emuhi, while Trichuris trichura was the most predominant in Ekpoma. The prevalence and burden of infection in cockroaches is likely to be a reflection of the sanitary conditions of these areas. Also, cockroaches in these areas making incursions in homes may increase the risk of human infections with these disease agents.

• Korean Journal of Health Education and Promotion
• /
• 제1권1호
• /
• pp.1-13
• /
• 1999

A study has been performed on perception of citizens about the medical insects (house flies, mosquitoes, cockroaches) in Chang Won city. A total of 375 subjects (male: 180, female: 195) was surveyed in October 1997. Cockroaches were the most dislike of medical insects to the dwellers. At a residence, cockroaches were the most troubled insects although mosquitoes were the most frequently appeared insects. Also, the most troubled insects were the cockroaches at hospitals, departments, coffee shops, and bars; the mosquitoes at theaters and parks; and the house flies at restaurants in the city. The cockroaches had the highest negative opinion score as a 4.4 point of a 5.0 point. About half of the subjects had extremely suffered from the mosquitoes (52.8%) and cockroaches (51.8%). House residents controlled house flies using fly swatters (50.0%) and insecticide sprayers (38.9%), but apartment residents controlled them using the sprayers (50.8%) and fly swatters (36.5%). The mosquitoes were controlled by using the sprayers (51.6%) and mosquito coils (36.4%). The cockroaches were controlled by using toxic baits (32.9%) and the sprayers (31.5%). Only 10% of the subjects were satisfied control management against the medical insects. The subjects wanted to more effectively control against cockroaches (39.9%) and mosquitoes (37.9%).

• 대한간호학회지
• /
• 제10권2호
• /
• pp.53-61
• /
• 1980

Hospital has a limited environment in which all different patients are accommodated and therefore it should always be maintained as clean as possible in all its aspects. However the habitation of cockroaches which may be frequently observed in hospital gives us a very unfavuoraqble impression. It may not b e difficult to presume that cocrkoaches carry various microganisms from ward to ward. This study was carried out from July to the end of August. 1979 with a total of 259 cockroaches captured from the three hospitals and general residences in Seoul. Investigation was made to see what kind o f organisms they were imbued with and the results obtained are summarized as follows. Totaly 1) The nine species of the microganisms were isolated from the captured cockroaches and the isolated rate was showed 96.6 ％. This organisms consisted of Aerobacter aerogenes（29.7% ). staphylocacci (22.4% ). gram negative bacilli（16.6％）. E. coli（10.4%), streptococci（9.7%). fugus（7.3), and yeast (0.4 ％). respectively. 2) The ratio of organism isolated from the cockroaches captured in each hospital appeared 98.6% in K hospital. 91.4% in P hospital and 100% in S hospital. respectively. 3) The total ratio of microganisms isolated from cockroaches captured in each ward of the hospitals was 96.9% and that by each ward was 96.0% in medical ward. 98.0% in surgical ward. 96.4% ill operating room. and 100% in infant care room. 4) The ratio of the microganisms isolated from the cockroaches captured in the kitchen of each hospital was 94.1% and that in the K and S hospitals was 100% and the P hospital. 83.3%. 5) The germ-carrying ratio of cockroaches captured from the jiving rooms and kitchens of general residences was 100%. 6) The staphylococci was isolated as 22.4% of 259 the corchrnahes and all of them belonged to negative coagulase. 7) Finaly. E. coli (10.4%) and Aevbarter aerogenes(29.7%) were isolted from the 259 cock-roaches. This was sugested that a great number of habitable cockroaches contacts directly with faces.

• Parasites, Hosts and Diseases
• /
• 제44권3호
• /
• pp.255-257
• /
• 2006

A field trial on the control effect of fipronil poison bait against German cockroaches (Blatella germanica) was carried out at different restaurant types in Sinchon, Seoul, Republic of Korea. Monitoring was performed applying food baited traps for 2 days per week. Reduction rates of German cockroaches by applying fipronil baits were 90.9% at Korean restaurants, 96.4% at Chinese restaurants, and 89.4% in beer hall kitchens after 4 weeks of the treatment. Overall average of the reduction rate was 93.9%. As the natural reduction rate at untreated restaurants was 11.5% after 4 weeks, a correction of the average reduction rate by applying the Abbot formula was 93.1 %.

• Parasites, Hosts and Diseases
• /
• 제61권1호
• /
• pp.60-71
• /
• 2023

Cockroaches can cause allergic sensitization in humans via contact with their feces or frass. Antibiotics can affect concentration of major allergen and total bacteria production in German cockroaches (Blattella germanica). This study examined the ability of antibiotic-treated German cockroaches to induce allergic airway inflammation and the effect of antibiotics on their lipopolysaccharide and Bla g1, 2, and 5 expression levels. Specifically, we measured the ability of German cockroach extract (with or without prior antibiotic exposure) to induce allergic inflammation in human bronchial epithelial cells and a mouse model of asthma. Bacterial 16S rRNA and lipopolysaccharide levels were lower in ampicillin-treated cockroaches than in the control group. The Bla g1, Bla g2, and Bla g5 expression in ampicillin-treated cockroaches decreased at both the protein and RNA levels. In human bronchial epithelial cell lines BEAS-2B exposed to the ampicillin-treated extract, expression levels of interleukin-6 and interleukin-8 were lower than that in the control group. The total cell count and eosinophil count in bronchoalveolar lavage fluid was also lower in mice exposed to the ampicillin-treated extract than in those exposed to normal cockroach extract. Mouse lung histopathology showed reduced immune cell infiltration and mucus production in the ampicillin group. Our results showed that ampicillin treatment reduced the symbiont bacterial population and major allergen levels in German cockroaches, leading to reduced airway inflammation in mice. These results can facilitate the preparation of protein extracts for immunotherapy or diagnostics applications.

• 한국식생활문화학회지
• /
• 제10권1호
• /
• pp.45-56
• /
• 1995

A study has been performed on the cockroach knowledge and perception of managers, employees and consumers, and the cockroach control management in food service institutions. A total of 759 subjects including 101 managers, 293 employees and 365 consumers was surveyed in Seoul and Pusan areas from July 1994 to September 1994. The results obtained are as follows: The mean rates of the cockroach knowledge (i.e. 62.26/100.0) and perception (i.e. 23.67/30.0) of the consumers were significantly (p<0.001) lower than those of the managers (i.e. 68.87/100.0 and 25.30/30.0, respectively) and the employees (i.e. 69.09/100.0 and 26.99/30.0, respectively). In the cockroach detection rates, however, much higher rate was seen in the consumer group (i.e. 79.5%) than the manager (i.e. 43.3%) and the employee (i.e. 48.5%) groups. Forty and seventy percents of the subjects have suffered from allergies and nuisance by cockroaches, respectively. The cockroach control was performed by 75.5% of the food service institutions and 70.8% of them contracted with pest control operators to reduce the cockroach populations. The cockroach control methods of the operators were aerosol (40.7%) and insecticidal baits (30.5%). Only 33.7% of the institutions had the budgets for the cockroach control. For public health, the managers and the employees of the institutions need to be educated about cockroaches and hygiene. Also, it is suggested that cockroaches be regularly controlled by professional pest control operators.

• 환경위생공학
• /
• 제7권2호
• /
• pp.129-140
• /
• 1992

Rats and Cockroaches are the most problematic pests of our living environment, Rats generally fall under three categories, namely, the Norway rats, the roof rats and the mouses, Among these three types, the roof rats are increasing rapidly in number and their habitats are spreading quickly in the city area, where as the Norway rats are decreasing both in number and habitat. There are numerous damages that these pests create in our society, The rat induce damages to computers and other information processing equipments, sometimes cause light-out, and other financial losses and other sanitary problems. The cockroaches, apart from inducing serious sanitary problems, is an insect that creates insectophobia. decently, it has been revealed that cockroaches are also the main carriers of allergic diseases. Among the pesticides employed against rats in Korea, Beta - fluoro acetate(1080) was initially used after the National Liberalization. Later, the Korean government imported anticoagulant rodenticide for its control. This was followed by a brief, unsuccessful utilization of Zinc Phosphide. Since the begin of 1980s, with the advent of pest control companies, first generation anticoagulant rodenticide were developed in Korea and recently followed by a widespread use of pesticide that utilizes second generation anticoagulant material, the "Brodifacoum" . Among insecticides employed against cockroaches, "Fenitrothion" "Dusban" "DDVP" "Diazinon" and others have been used. They were gradually being replaced by the use of synthesised pyrethroid insecticides until recently. Today there is a wide spread use of bait poisons, the "hydramethylnon" Nevertheless, full prevention and control can not be realized with the sole use of the pesticides. In the future, hygine and proofing, combined with affective pest management, must be incorporated in order to bring about more satisfactory and fruitful preventive measures.

• 한국응용곤충학회:학술대회논문집
• /
• 한국응용곤충학회 2002년도 합동 춘계 학술발표회
• /
• pp.190-190
• /
• 2002

• 한국응용곤충학회:학술대회논문집
• /
• 한국응용곤충학회 2002년도 추계 합동 특강 및 학술발표대회
• /
• pp.150-150
• /
• 2002

• 한국동물학회:학술대회논문집
• /
• 한국동물학회 2003년도 한국생물과학협회 학술발표대회
• /
• pp.46-46
• /
• 2003

No Abstract, See Full Text