COVID-19-free workplace: Measuring the level of antibodies against coronavirus as a basis for testing strategy in companies.

The Czech Republic is one of the countries most affected by the coronavirus pandemic - approximately 16% of the population had a positive PCR test, 2-3 times more people underwent infection without undergoing this examination. It is particularly useful for employers to know how many employees have already contracted the infection and for how many people are still at risk of the coronavirus infection. For this purpose, it is appropriate to examine IgG antibodies.

The role of Chlamydia pneumoniae in the etiology of keratoconjunctivitis sicca (KCS).

Aim: The authors aimed to show the possible relationship between keratoconjunctivitis sicca (KCS) and Chlamydia pneumonia from the point of view of clinical and microbiological diagnostics.

Material And Methods: 94 adult patients were treated for follicular conjunctivitis with symptoms of KCS with possible Chlamydia pneumoniae etiology. The diagnosis of a chlamydial infection is based on the serological positivity of chlamydia antibodies and is further based on the antigen positivity in conjunctival imprint preparations.

[Serological findings of Chlamydial pneumoniae in the Czech Republic--control group of patients examined in the study: Chlamydia pneumoniae in the aetiology of keratoconjunctivitis sicca].

Background: One of the aims of IGA NS-10016 Project "Chlamydia pneumoniae in the etiology of keratoconjunctivitis sicca" was to evaluate the serologic results regarding chlamydia infections in patients affected by keratoconjunctivitis sicca, and to compare these findings with serology tests of the control group. Serologic examination comprised anti-LPS (genus specific) antibodies detection, Chlamydia pneumoniae and Chlamydia trachomatis species specific antibodies and antibodies against chlamydia heat-shock protein cHSP60 IgG.

Methods And Results: The control group was formed by FNKV Ophthalmology Clinic patients who were coming for pre-operative investigation.

The Relationship between chlamydia trachomatis and chlamydia pneumoniae as the cause of neonatal conjunctivitis (ophthalmia neonatorum).

The authors examined 130 newborns and nursery children from September 1999 till May 2003 from the Prague district for the surmise of chlamydial conjunctivitis. Chlamydia infections were detected in conjunctival smears. Chlamydia trachomatis was confirmed in 20 (15.