What disease does Serratia Liquefaciens cause?
marcescens can cause a wide variety of infections, ranging from UTIs, bacteremia, pneumonia, and CNS infections, to other less common infections, including ocular infections. The most common site of infection is the urinary tract, but the organism is frequently isolated from the respiratory tract and wounds.
What does Serratia look like?
Serratia marcescens is a rod-shaped Gram negative bacterium of the Enterobacteriaceae family that was first described in 1819. It is found widely throughout the environment, including in the soil and water. It is associated with plants, insects, and animals.
Where is Serratia Liquefaciens found naturally?
It belongs to the genus Serratia and the family Enterobacteriaceae[1]. It is widely distributed in nature, including river water [2], mineral, spring and table water [3], domestic sewage [4], fish, minced meat and pasteurized milk or cream [5]. It has been reported as a cause of mastitis in a dairy herd [6].
Is Serratia Liquefaciens Gram positive or negative?
Serratia species are opportunistic gram-negative bacteria in the large family, Enterobacteriaceae. Serratia are widespread in the environment, but are not a common component of the human fecal flora. Serratia marcescens is the primary pathogenic species of Serratia.
Is Serratia curable?
Serratia marcescens is a rare agent causing peritonitis, and few cases of Serratia marcescens peritonitis in previous reports were successfully cured without removing the peritoneal catheter.
Do you isolate for Serratia marcescens?
Conditions for Growth: S. marcescens will grow at 20°C and 40°C, pH 9 and in 4% NaCl. Isolation: Selective agars such as MacConkey and CHROMagar can be used to isolate S. marcescens from non-sterile or environmental sites.
What is the shape of Serratia liquefaciens?
Description and significance. S. liquefaciens is a straight rod shaped bacterium with a diameter of 0.5-0.8 μm, a length of 0.9-2.0 μm, and is Gram negative. Serratia species are usually motile and contain peritrichous flagella. S. liquefaciens are facultative anaerobes making oxygen inessential to survival.
What research is being done on Serratia liquefaciens?
Research is also being done to determine exactly how Serratia liquefaciens infections have been spreading – particularly in the sense of epidemics. While it is known that a wide variety of clinical manifestations have occurred over the past couple of years, the particular sources of infection are difficult to identify.
What does Serratia look like on nutrient agar?
Nonpigmented species or biotypes of Serratia produce opaque-whitish, mucoid, or transparent smooth colonies on nutrient agar. Some strains of S. liquefaciens, S. odorifera, S. plymuthica, and S. ficaria can grow at 4–5 °C; other strains of S. odorifera, S. marcescens, and S. rubidaea can grow at 40 °C.
What causes Serratia liquefaciens infection in pigs?
Inadequate water sanitation might have been responsible for increased exposure to S. liquefaciens. SIGNIFICANCE AND IMPACT OF THE STUDY: In this study, the isolation of Serratia liquefaciens from the urinary tract of pigs associated with clinical signs and increased mortality was described for the first time.