Klebsiella pneumonia is a bacteria that causes many negative impacts on health, primarily due to its tendency to develop antibiotic resistance. This research aims to identify the prevalence of the CTX-M gene as an ESBL marker of the Clinical Isolate of K. pneumoniae of Wahidin Sudirohusodo General Hospital. The samples consisted of 50 Clinic isolates of K. pneumoniae which fulfilled the inclusion and exclusion criteria. The research procedure consisted of DNA extraction, amplification, and agarose gel electrophoresis. The research results indicate that 38 samples (76%) are positive for the CTX-M gene, while 12 samples (24%) are negative or not found CTX-M gene. Thus, the prevalence of the CTX-M gene in K. pneumoniae resistant to beta-lactam antibiotics in Wahidin Sudirohusodo General Hospital is relatively high.

Klebsiella pneumoniae is one of the most common ESBL-producing microorganisms. The research aims to detect the Tem gene in clinical isolates of K. pneumonaie from the Laboratory of clinical pathology of Wahidin Sudirohusodo General Hospital. Methods: This research is a descriptive cross-sectional design. Fifty samples of K. pneumonieae were obtained from the Laboratory of clinical pathology from March to May 2018. Tem gene was detected using primary Tem 164.SE and Tem 165.AS (445 bp) of Polymerase Chain Reaction (PCR). The research results indicate that 48 isolates are positive, containing the Tem gene with the highest number found in the sputum specimen. Genotype detection of bacteria-producing ESBL is essential so that antibiotic therapy given to the patients is more effective and efficient.

Background: Steptoccocus mutans is one of flora normal bacteria in the human body which can cause infections in the mouth cavity. Algae are plant-like organisms that may be found in a marine ecosystem. Recents studies have reported that algae contains numerous pharmacological activities compounds, such us: antibiotic, cytotoxic, antifungal, anti virus and antitumor. Purpose: this research aimed to know the  antibacterial activity of algae extract against the growth of pathogen bacteria Streptococcus mutans. Methods: Algae were extracted by using aquades.The inhibition test was performed by agar diffusion method on Glucose Nutrient Agar (GNA) using three types of algae extracts: Eucheuma cottoni, Turbinaria decurrens and Ulva reticulata on the incubation period 1x24 and 2x24 hours at 37◦C. Data collection technique was based on the results of measuring the diameter of the inhibition zone (clear zone) for the growth of Streptococcus mutans bacteria using a caliper. The data obtained were analyzed using quantitative descriptive analysis methods. This data analysis was processed to see if there was a difference in antibacterial power from extract algae samples. Results: U. Reticulate algae extract formed a clear zone 11.2 mm in diameter at 1x24-hour incubation, and 10.3 mm at 2x24-hour incubation. T. deccurens formed clear zones 12.7 mm in diameter at 1x24-hour incubation, and 11.4 mm at 2x24-hour incubation. E. cottonii formed clear zones 10.1 mm in diameter at 1x24-hour incubation, and 9.3 mm at 2x24-hour incubation. Conclusion: Extracts of T. decurrens have the most potential in inhibiting the growth of pathogenic microbes of S. mutants.

Microbes or microorganisms are organisms that have a size so small that they can only be seen with the help of a microscope. Microbes are widespread in nature and can be found anywhere. Mikroba can be settled in the soil, water, air, there is even one that is found in living beings (on living tissues). The microbiome is a community of microbes or microorganisms in this case bacteria, archae, fungi, viruses that live above or within other living organisms. The human-associated microbiome is called the microbiota. The presence of microbes in the body can cause interactions that are beneficial, detrimental or some are neutral in nature. The use of antibiotics whose nature is synthetic can cause a negative effect for health besides that it can also cause  resistance properties.  Therefore, it is necessary to have a type of antibiotic that comes from living beings.  The sample used in this study was a bacterial isolate in the oral cavity (swab results) the next stage was characterization through biochemical tests.  The results of characterization through biochemical tests showed that isolates of oral microbiota bacteria showed the species Streptococcus sp. which has the ability to produce antimicrobial compounds.