Everyone, at some point in their life, have experienced getting sick from another human being. Whether it was contracting chicken pox playing kickball in elementary school or kissing a significant other, it is not uncommon to contract an infectious disease from another person.
A disease is defined as an abnormal condition of an organism that impairs bodily functions, usually indicated by specific symptoms and signs. Infectious diseases, in particular, are caused by external factors such as viruses, bacteria, and other harmful pathogens. It may be as simple as the coughing of co-worker or carelessness in the hospital that can cause you to contract an infectious disease. These diseases range from the common cold to deadly sexually transmitted diseases.
Infectious diseases may seem like an omnipresent part of human life, but there are definitely steps that you can take to avoid contracting such infectious diseases. Being careful and conscious of your safety, along with knowing your surrounding environment can help you avoid contract an infectious disease. Your skin is the main defensive mechanism against infectious diseases, but some diseases will find other ways to enter your body.
The rest of this article will give you tips on how to avoid contracting infectious diseases. Follow these tips to change your behavior and avoid the spread and contraction of these diseases. plumber atlanta Read more »
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Posted in medicalmatrix | February 13, 2010 | 
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This article focuses on common bacterial infections in pregnancy and describes the manifestations of these infections and the therapies used to treat them.
Bacterial infections can affect pregnant women from implantation of the fertilized ovum through the time of delivery and peripartum period. They may also affect the fetus and newborn. Many women with these infections are asymptomatic, necessitating both a high degree of clinical awareness and adequate screening.
Grop B Streptococcus
Group B Streptococcus (GBS) is the most common cause of life-threatening infections in newborns; thus, GBS is the primary focus of any discussion about infections and pregnancy. Infections caused by GBS affect both mother and child. Since the emergence of this pathogen in the 1970s, the increased use of intrapartum prophylaxis has decreased the infection rate by 70%.
Etiology
Streptococcus agalactiae, or GBS, is a facultative, beta-hemolytic, fastidious, gram-positive coccus. GBS can be found as part of normal vaginal, rectal, and oral flora. The virulence of the organism depends largely on the polysaccharide capsule.
Transmission
Twenty to 25% of pregnant women are asymptomatic carriers of vaginal or rectal GBS. Intrapartum transmission occurs via ascending spread or at the time of delivery.
Clinical spectrum
Because only 0.5-1% of mothers who carry GBS develop signs and symptoms of disease, clinical diagnosis of GBS infection can be problematic.
In pregnant women, GBS is a cause of cystitis, amnionitis, endometritis, and stillbirth. Occasionally, GBS has caused endocarditis and meningitis in pregnant women, while, in postpartum women, GBS has been identified as a cause of urinary tract infections (UTIs) and pelvic abscesses. Read more »
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Background
Intracranial abscesses are uncommon, serious, life-threatening infections. They include brain abscess and subdural or extradural empyema and are classified according to the anatomical location or the etiologic agent. The term brain abscess is used in this article to represent all types of intracranial abscesses.
Intracranial abscesses can originate from infection of contiguous structures (eg, otitis media, dental infection, mastoiditis, sinusitis) secondary to hematogenous spread from a remote site (especially in patients with cyanotic congenital heart disease), after skull trauma or surgery, and, rarely, following meningitis. In at least 15% of cases, no source can be identified.
In recent years, the complex array of etiologic agents that cause brain abscess has become better understood.
Pathophysiology
Brain abscess is caused by intracranial inflammation with subsequent abscess formation. In at least 15% of cases, the source of the infection is unknown (cryptogenic). Infection may enter the intracranial compartment directly or indirectly via 3 routes.
Contiguous suppurative focus (45-50% of cases)
Direct extension may occur through necrotic areas of osteomyelitis in the posterior wall of the frontal sinus, as well as through the sphenoid and ethmoid sinuses.This direct route of intracranial extension is more commonly associated with chronic otitic infection and mastoiditis than with sinusitis. Odontogenic infections can spread to the intracranial space via direct extension or a hematogenous route. Contiguous spread could extend to various sites in the central nervous system, causing cavernous sinus thrombosis; retrograde meningitis; and epidural, subdural, and brain abscess. Read more »
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