Infections are generally caused by ingesting contaminated food or water but may also be transmitted sexually. Most infections are asymptomatic however some may cause invasive amebiasis which can result in colitis or dysentery-like illness that can be severe. Amoebic dysentery (amoebiasis) is caused by Entamoeba histolytica.
Entamoeba histolytica DNA
Entamoeba histolytica DNA
Entamoeba histolytica are pathogenic protozoa particularly prevalent/picked up in tropical and subtropical regions.
Entamoeba histolytica is an intestinal dwelling parasite in the human gastrointestinal tract that can cause disease such as amebiasis, amebic colitis and amebic liver abscesses or or extraintestinal infections.
E.histolytica can colonise the gut of its host without causing any symptoms, however in approximately 10% of cases it becomes pathogenic and causes disease. Symptoms may include mild to bloody diarrhoea, abdominal pain, weight loss or fever. Infected individuals shed cysts in their faeces, which are then transmitted by the ingestion of contaminated food, water or from person-to-person contact.
The incubation period for E.histolytica is on average 2-4 weeks after exposure. The infectious period of an E.histolytica infection lasts as long as there are cysts excreted in the faeces of the infected individual. Therefore, the infectious period may last for weeks or many years if untreated.
Loose/liquid human faecal sample.
|Clostridium difficile toxin A/B||Astrovirus||Cyclospora cayetanensis|
|Plesiomonas shigelloides||Rotavirus A||Entamoeba histolytica|
|Salmonella||Novovirus GI/GII||Giardia lamblia|
|Vibrio||Sapovirus (Genogroups I, II, IV and V)|
In addition to the packaging of samples, the transport/delivery of clinical samples to the laboratory is required to be in adherence to all national regulations for the safe transport of biological materials. Enfer Medical provides a fully compliant logistics service, aligned with clients’ testing requirements.
Prompt transport of specimens:
To ensure prompt testing of samples and release of results within the published test turnaround times, samples should arrive to the laboratory by 18:00. Test turnaround time is measured from receipt of the sample at the laboratory until the time the authorised results are reported to users.
In rare cases specimens may not be suitable for testing on arrival to the laboratory. In that case the sample will be rejected at the receipt stage and the service user will be notified immediately and an explanation as to why the sample could not be processed will be provided. Reasons why samples cannot be processed include but are not limited to:
- Samples received beyond the stability limits and/or not at the correct temperature indicated for each test.
- Incorrect sample type received.
- Leaking samples, sample not received or sample insufficient for analysis as stated below within sample requirements.
- Non-compliant samples or request forms i.e. those missing sample date information, missing sample test request and/or missing sample site/type information.
- Samples received without the necessary patient identifiers.
- NOT DETECTED