Coronavirus disease 2019 vaccine: An overview of the progression and current use.

On December 31, 2019; unidentified pneumonia cases were reported from China. It was soon announced that these cases were of viral origin and the cause was a new coronavirus (CoV). Initially, the virus was called "novel CoV " and then defined as "severe acute respiratory syndrome CoV 2 (SARS-CoV-2)" after more detailed investigations.

[Short communication: prevalence of extended spectrum beta-lactamases in gram negative rods: data of 2001-2004 period].

This study was undertaken to determine the prevalence of extended spectrum beta-lactamase (ESBL) production by Gram negative rods (GNRs) isolated from various clinical specimens (3.240 urine, 336 pus, 277 feces, 83 blood, 38 sputum) sent to our hospital laboratory, between 2001-2004. Of isolated bacteria 71.

[Antibiotic resistance rates of Shigella species isolated from stool cultures in the years 1999-2003].

In this study, species distribution, seasonal isolation rates and antibiotic susceptibilitiy patterns of 115 Shigella spp, isolated from 5396 stool samples in our microbiology laboratory between 1999 and 2003, were investigated. Of the isolates, 96 (83.5%) were S.

[Inhibitor effect of vaginal lactobacilli on group B streptococci].

Neonatal group B streptococcal (GBS) infections are one of the important health problems because of their high mortality and morbidity rates in certain countries. There are some preventive approaches, including perinatal antibiotic therapy against these infections. Recently, vaccination with conjugated GBS polysaccharides has also been practised.

Childhood diarrhoea in Ankara, Turkey: epidemiological and clinical features of rotavirus-positive versus rotavirus-negative cases.

Published reports dealing with rotavirus infections in Turkey are very scarce. This study included 1099 consecutive paediatric patients with diarrhoea, who sought care at 3 hospitals in Ankara, Turkey between 1999 and 2002 and were investigated for the presence of rotavirus antigen in faeces. Rotavirus antigen was detected by an immunochromatographic test, Simple Rotavirus (Operon, Spain).

Macrolide resistance determinants of invasive and noninvasive group B streptococci in a Turkish hospital.

Macrolide resistance in 156 consecutive group B streptococcal isolates was investigated. Thirty-five isolates (22.4%) had inducible (80%) or constitutive (20%) erythromycin resistance.

[Macrolide resistance phenotypes and genotypes in group G streptococci].

Group G streptococci (GGS) are among the bacterial causes of pharyngitis. In this study, a total of 57 GGS strains isolated from throat swabs were initially screened by NCCLS disk diffusion test for penicillin and erythromycin susceptibilities. Phenotypes of the erythromycin resistance were determined by a triple-disk test and the responsible genes were sought by polymerase chain reaction (PCR) using mefA, ermA, ermA-subclass ermTR and ermB primer sets.

CTX-M-3 extended-spectrum beta-lactamase in a Shigella sonnei clinical isolate: first report from Turkey.

A Shigella sonnei strain resistant to cefotaxime and aztreonam (but not ceftazidime) was isolated from the stool sample of a 7-y-old outpatient. Double disk synergy test, isoelectric focusing, polymerase chain reaction and sequence analysis confirmed that the isolate produced CTX-M-3, an extended-spectrum beta-lactamase (ESBL). This is the first report from Turkey of Shigella spp.

Macrolide resistance determinants of group A streptococci in Ankara, Turkey.

Objectives: Macrolide-lincosamide-streptogramin B (MLSB) resistance determinants of group A streptococci (GAS) in Ankara, Turkey, were defined for the first time. ISOLATES AND METHODS: A total of 1355 GAS isolates, collected from three different regions of Ankara, were screened for erythromycin resistance. Resistance phenotypes were determined by a triple-disc test, and the gene determinants responsible were determined by PCR.

Increasing the detection rate of group B streptococcal carriers by non-selective cervico-vaginal culture accompanied with the selective vagino-anorectal one.

It has been previously well defined that selective vagino-anorectal culture is required for detection of group B streptococcal (GBS) carriage. We interestingly observed that in 5.74% of carriers, GBS were recovered only from cervico-vaginal samples inoculated onto nonselective human blood agar, without recovery from vagino-anorectal samples inoculated to four selective media.

[Retrospective microbiologic evaluation of vaginal cultures].

Vaginal culture is one of the most difficult cultures to be evaluated in clinical microbiology practice. The necessity of some expensive and complicated processes for diagnosis of some specific agents, age related variability of normal vaginal flora and failure caused by temporary presence of some pathogens in normal flora can be listed among the probable causes of that problem. In this study 8050 vaginal cultures performed in our hospital laboratories between 1 March 1999-15 September 2001 were evaluated retrospectively.