Serological Tests
ثبت نشده
چکیده
Serological diagnosis of an acute infection can be done by the demonstration of seroconversion and/or agent-specific IgM antibodies in the serum samples. Seroconversion describes 4 fold or more increase in antibody levels of the serum samples which is collected at the acute and convelescent phase (10-15 days intervals) of an infection. As the detection of seroconversion is time-consuming, the agent-specific IgM antibodies –an indicative marker for the acute infectioncan easily be detected in a single serum sample, by rapid immunologic methods. However, as the IgM antibodies may be persistant even after the acute infection in some cases, or may reappear in reinfections and/or re-activations, it should be kept in mind that the presence of agentspecific IgM is not a strict marker of the primary acute infection. The detection of IgA antibodies is also useful for the serologic diagnosis of mucosal infections.
منابع مشابه
Comparison of various serological tests on the milk of sheep in relation to the isolation of Brucella melitensis
متن کامل
Mycoplasma agalactiae 111-The Comparison of Different Serological Tests with M. agalactiae Antigen
متن کامل
Comparison between Micro and Tube Virus Neutralization Tests for Detection of Serological Responses to Infectious Bursal Disease Virus Following Vaccination
متن کامل
Covid-19 Serological Tests: A Journey from Denial of Reality to Conclusive Insights
In response to the outbreak of COVID-19, caused by the SARS-CoV-2 virus, several tests are needed for diagnosis of acute illness, contact tracking, diagnosis of asymptomatic infections, and assessment of herd immunity. While PCR is the standard test in acute type, serological tests have been developed and used to meet diagnostic needs due to the widespread prevalence of the disease. Unlike the...
متن کاملSerological tests for the diagnosis of active tuberculosis: relevance for India
Diagnostic tests for active tuberculosis (TB) based on the detection of antibodies (serological tests) have been commercially available for decades, although no international guidelines have recommended their use. An estimated 1.5 million serological TB tests, mainly enzyme-linked immunosorbent assays, are performed in India alone every year, mostly in the private sector. The cost of serologica...
متن کاملEVALUATION OF !FA, IHA AND BLA TESTS IN THE SEROLOGICAL DIAGNOSIS OF AMEBIC LIVER ABSCESS
As there was not any previous comprehensive study on the serological tests for hepatic amebiasis in Iran, the indirect hemagglutination (IHA), indirect fluorescent antibody (IF A), and biocolored latex agglutination (BLA) tests were evaluated in the serodiagnosis of amebic liver abscess(ALA). For this purpose a total of 165 serum samples 18 of which were obtained from patients known to have...
متن کامل