Ascaris and Toxocara as foodborne and waterborne pathogens

Discharge of sewage into the ocean is still a common method of disposal worldwide. Both treated and untreated sewage may contain significant concentrations of waterborne pathogens, such as Giardia, Cryptosporidium, poliovirus and Salmonella. Limited studies exist on the survival of poliovirus and Salmonella in marine waters; however, almost no information exists on the survival of protozoan parasites in marine waters. This study examined the survival of Giardia muris cysts, Cryptosporidium parvum oocysts, poliovirus-1 and Salmonella typhimurium in marine waters. The survival of the microorganisms varied according to the presence of light, salinity and water quality (as determined by quantity of enterococci). All microorganisms survived longer in the dark than in sunlight, the order of survival in sunlight being: Cryptosporidium > poliovirus > Giardia > Salmonella.

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Where future emerging pathogens will come from and what approaches can be used to find them, besides VFARs

Journal of Water and Health ◽

10.2166/wh.2009.096 ◽

2009 ◽

Vol 7 (S1) ◽

pp. S75-S93 ◽

Cited By ~ 8

Author(s):

Mark D. Sobsey ◽

Suresh D. Pillai

Keyword(s):

Human Health ◽

Antibiotic Use ◽

Epidemiological Surveillance ◽

Waterborne Pathogens ◽

Human Pathogens ◽

Emerging Pathogens ◽

Antibiotic Resistant ◽

Waterborne Pathogen ◽

Pathogen Virulence ◽

Human Health Effects

A consideration of available evidence for some known and well-characterized waterborne pathogens suggests that the diversity of pathogen virulence mechanisms and properties is too great to specifically predict the emergence and future human health impacts of new waterborne pathogens. However, some future emerging pathogens are existing microbes that will be discovered to cause disease. Some will arise from existing ones by either predictable evolutionary and adaptation changes or by unpredictable changes involving a variety of biotic and abiotic mechanisms. Many, and perhaps most, emerging waterborne human pathogens will be zoonotic agents or come from other non-human reservoirs. The emergence of some waterborne pathogens will be related to antibiotic use, resulting in emerging antibiotic-resistant waterborne pathogens. Reliably predicting pathogen emergence and human health effects based on VFARs or other properties of microbes and their hosts is not possible at this time. This is because of (1) the diversity of microbes and their virulence and pathogenicity properties, (2) their ability to change unpredictably, (3) their intimate and diverse interrelationships with a myriad of hosts and dynamic natural and anthropogenic environments and (4) the subtle variations in the immune status of individuals. The best available approach to predicting waterborne pathogen emergence is through vigilant use of microbial, infectious disease and epidemiological surveillance. Understanding the microbial metagenome of the human body can also lead to a better understanding of how we define and characterize pathogens, commensals and opportunists.

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In silico Identification of Novel Compounds as Quorum-Sensing Inhibitors in Selected Waterborne Pathogens

Asian Journal of Biological and Life Sciences ◽

10.5530/ajbls.2021.10.50 ◽

2021 ◽

Vol 10 (2) ◽

pp. 366-377

Author(s):

Khirsten Marie Bawar ◽

Leannie Praise Cruz ◽

Kristine Bernadette Ilao ◽

Julianne Mica Justiniano ◽

Lara Mae Panganiban ◽

...

Keyword(s):

Quorum Sensing ◽

In Silico ◽

Waterborne Pathogens ◽

Quorum Sensing Inhibitors ◽

In Silico Identification

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Prevalence and diversity of Arcobacter spp. in retail chicken meat in Turkey

Microbiology Research ◽

10.4081/mr.2016.6578 ◽

2016 ◽

Vol 7 (1) ◽

Cited By ~ 1

Author(s):

Celenk Molva ◽

Halil Ibrahim Atabay

Keyword(s):

Polymerase Chain Reaction ◽

Multiplex Pcr ◽

Chicken Meat ◽

Species Level ◽

Waterborne Pathogens ◽

Chain Reaction ◽

Retail Markets ◽

Specific Polymerase Chain Reaction ◽

Polymerase Chain ◽

Retail Chicken Meat

Arcobacters are food and waterborne pathogens associated with human and animal infections. The objective of the present study was to investigate the prevalence and diversity of Arcobacter spp. in commercially sold chicken meat in İzmir region of Turkey. For this purpose, 100 samples including legs (n=40), 17 chicken quarters (n=17), drumstickers (n=16), breasts (n=11), wings (n=10), and carcasses (n=6) were collected from different retail markets. A total of 65 isolates were confirmed as Arcobacter spp. from 55 samples by genus-specific polymerase chain reaction (PCR). The prevalence of Arcobacter spp. was 32.5, 81.3, 64.7, 72.7, 83.3, and 50% for legs, drumstickers, chicken quarters, breasts, carcasses and wings, respectively. Based on the multiplex-PCR, most of the isolates were identified as A. butzleri (n=45, 80%), followed by A. cryaerophilus (n=2, 3.6%), A. skirrowii (n=1, 1.8%) and 17 isolates (30.9%) could not be identified at the species level.

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