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1.
J Pediatr Orthop ; 34(6): 647-9, 2014 Sep.
Article in English | MEDLINE | ID: mdl-24590331

ABSTRACT

Human bite wounds around the knee are rarely seen, yet may require the same urgent attention as a fight bite to the hand. Two cases of polymicrobial septic arthritis of the knee secondary to a human bite wound are described. In both the cases, the diagnosis of the septic arthritis was delayed because the intra-articular wound was unrecognized. The injuries were initially deemed superficial and managed with local wound care. In each case, the knee was flexed at the time of injury and the quadriceps tendon was penetrated by a tooth which inoculated the knee joint. Septic arthritis of the knee presented, in both cases, 72 hours after the injury. These infections proved challenging to treat and required multiple surgeries and prolonged antibiotic therapy. The "fight bite" phenomenon of the hand is widely recognized and the same phenomenon can occur at the knee.


Subject(s)
Arthritis, Infectious/diagnosis , Bites, Human/complications , Knee Injuries/complications , Adolescent , Anti-Bacterial Agents/therapeutic use , Arthritis, Infectious/etiology , Arthritis, Infectious/therapy , Debridement , Delayed Diagnosis , Humans , Knee Joint/microbiology , Male , Range of Motion, Articular
2.
Adv Exp Med Biol ; 380: 221-8, 1995.
Article in English | MEDLINE | ID: mdl-8830483

ABSTRACT

Feline Infectious Peritonitis Virus (FIPV) is a coronavirus that induces an often fatal, systemic infection in cats. Various vaccines designed to prevent FIPV infection have been shown to exacerbate the disease, probably due to immune enhancement mediated by virus-specific immunoglobulins against the outer envelope (S) protein. An effective vaccine would be one that induces cell-mediated immunity without disease enhancing antibodies. In this report, we describe the use of a recombinant raccoon poxvirus that expresses the gene encoding the nucleocapsid protein of FIPV (rRCNV-FIPV N) as an effective vaccine against FIPV-induced disease. Cats were parenterally or orally vaccinated twice, three weeks apart. Cats were then orally challenged with Feline Enteric Coronavirus (FECV), which induces a subclinical infection that can cause enhancement of subsequent FIPV infection. Three weeks later, cats were orally challenged with FIPV. The FIPV challenge induced a fatal infection in 4/5 (80%) of the controls. On the other hand, all five cats vaccinated subcutaneously with rRCNV-FIPV N showed no signs of disease after challenge with FIPV. Four of the five subcutaneous vaccinates survived an additional FIPV challenge. Vaccination with rRCNV-FIPV N induced serum IgG antibody responses to FIPV nucleocapsid protein, but few, if any, FIPV neutralizing antibodies. In contrast to the controls, protected vaccinates maintained low FIPV serum neutralizing antibody titers after FIPV challenge. This suggests that the protective immune response involves a mechanism other than humoral immunity consisting of FIPV neutralizing antibodies.


Subject(s)
Capsid/immunology , Coronavirus, Feline/immunology , Feline Infectious Peritonitis/immunology , Poxviridae/immunology , Vaccines, Synthetic , Viral Core Proteins/immunology , Viral Vaccines , Animals , Capsid/biosynthesis , Capsid/genetics , Cats , Cell Line , Chlorocebus aethiops , Cloning, Molecular , Coronavirus, Feline/genetics , Dose-Response Relationship, Drug , Feline Infectious Peritonitis/prevention & control , Genes, Viral , Poxviridae/genetics , Raccoons , Time Factors , Vaccination , Vero Cells , Viral Core Proteins/biosynthesis , Viral Core Proteins/genetics
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