Opportunistic infection

range from 5 to 9. These micro organisms are components of the intestinal flora in animals and humans. Serratia are opportunistic pathogens, healthy humans’ infections being rare1,3. S. marcescens was long time considered a non-pathogenic bacterial species but today is considered an important human pathogen in hospitals which leads to cause a significant agent of nosocomial infections with different severities3,4,5,6,7.…

Neonatal sepsis is defined as clinical syndrome in an infant 28 days of life or younger,manifested by systemic signs of infection and isolation of a bacterial pathogen from the bloodstream (Edwards ms and baker cj 2004). Diagnosis and management of sepsis are agreat challenge facing neonatologists in nicus.clinical diagnosi of presentation is difficult due to non specific signs and symptoms . In addition,laboratory diagnosis is time consuming.this matter necessitates the initiation of empirical…

is neurovirulence, which is the ability of the virus to attack the nervous system and copy itself. Another distinctive feature of this virus is that it can remain as a latent infection in the sacral…

filamentous, spirilla and vibrio. Some are beneficially good for the body and others can be parasitic and produce toxins that can cause disease or death. • Fungi – A single celled or multicellular organism which cause infection to a healthy body or can be opportunistic pathogens that cause infections in immunocompromised persons. Fungi is also used for good in the development of antibiotics and other drugs which are used to control a range of human diseases.…

Pneumocystis pneumonia represents a potentially life-threatening infection caused by a fungal microorganism Pneumocystis jiroveci. Initially observed in premature and malnourished infants, Pneumocystis pneumonia is today one of the most frequent opportunistic infections in adults infected with human immunodeficiency virus (HIV). As nonspecific symptoms are often hindering timely diagnosis, one of the most important diagnostic tools for Pneumocystis pneumonia is a high level of clinical…

Pathogens may be viruses, bacteria, protists, or fungi they are just microorganisms that can cause diseases. Bacteria are microscopic and once bacteria find their way into the body they release toxins that make us feel sick. Examples of bacterial infections are cholera, typhoid, food poisoning, and gonorrhea. Although bacteria are very small viruses are much smaller, they are among the smallest organisms we know of. Viruses not only enter the body but they enter cells and reproduce inside cells,…

Faecal contamination of water is routinely detected by microbiological analysis. The approach that has been adopted is to analyses for indicator organisms that inhabit the gut in large numbers and are excreted in human faeces. The presence of these indicator organisms in water is evidence of faecal contamination and therefore, of a risk that pathogens are present. If indicator organisms are present in large numbers, the contamination is considered to be recent and/or severe. Total coliforms,…

111). Cats that live in environmentswhere they aren’t being well taken care of are naturally at a greater risk of infection. Cats can also be infected with FIV not only through biting, but by being kept in crowded,stressful environments such as kennels or shelters, where most will be susceptible to infectionsand where controlling the spread of disease is difficult (ANSC207…

on the risk of secondary infection arises from snakebite. Additional to envenomation complication of wound infection and soft tissue necrosis fasciitis, however, snakebite wounds polymicrobial…

Respiratory Syncytial Virus (RSV) is a viral infection that affects young children and infants, but may also affect adults. RSV belongs to the family of paramyxoviruses and is classified in the genus pneumoviruses. There are at least ten polypeptides of RSV that exist. RSV is an ssRNA, enveloped virus ranging in size from 120-300nm, its envelope contains two proteins and two glycoproteins, according to virology-online. It has two subtypes A and B with, it is believed that subtype A exhibits…