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Query: UMLS:C0021051 (immunodeficiency)
 71,517 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

One of the most important aspects of preparing travelers for destinations throughout the world is providing them with immunizations. Before administering any vaccines, however, a careful health and immunization history and travel itinerary should be obtained in order to determine vaccine indications and contraindications. There are three categories of immunizations for foreign travel. The first category includes immunizations which are routinely recommended whether or not the individual is traveling. Many travelers are due for primary vaccination or boosting against tetanus-diphtheria, measles-mumps-rubella, pneumococcal pneumonia, and influenza, for example, and the pre-travel visit is an ideal time to administer these. The second category are immunizations which might be required by a country as a condition for entry; these are yellow fever and cholera. The final category contains immunizations which are recommended because there is a risk of acquiring a particular disease during travel. Typhoid fever, meningococcal disease, rabies, and hepatitis are some examples. Travelers who are pregnant or who are infected with the human immunodeficiency virus require special consideration. Provision of appropriate immunizations for foreign travel is an important aspect of preventing illness in travelers.
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PMID:Immunizations for foreign travel. 133 7

Current data indicate that there are a number of infectious diseases, ie, acquired immunodeficiency syndrome/human immunodeficiency virus infections, cysticercosis, hepatitis A, syphilis, tuberculosis, and typhoid fever, among others that cause disproportionately increased morbidity in Hispanics. The greater rate of poverty with its associated socioenvironmental problems, increased barriers to health care, and importation of infectious diseases endemic in the mother country are some of the major reasons that probably account for this disparity in disease burden in Hispanics. This formidable health problem can be addressed by targeting efforts at improving health education of family units and communities, environmental improvements, elimination or reduction of barriers to health care management and disease prevention, and appropriate screening programs. A comprehensive and uniform assessment of the impact of infectious diseases on Hispanics (and other minorities) in this country remains elusive, but is of paramount importance in establishing priorities and effective/efficient strategies to address this issue.
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PMID:Major infectious diseases causing excess morbidity in the Hispanic population. 187 56

Eight cases of typhoid and paratyphoid fever were identified during a 4-year period in a cohort of 117 patients who were positive for human immunodeficiency virus in Lima, Peru. Asymptomatic patients with human immunodeficiency virus infection and patients with the lymphadenopathy syndrome had a typical clinical presentation and response to therapy. Patients with the acquired immunodeficiency syndrome who were culture positive for Salmonella typhi or Salmonella paratyphi presented with fulminant diarrhea and/or colitis; the two patients for whom at least 2 months of follow-up were available relapsed. In our cohort there were 0.06 cases of typhoid or paratyphoid per patient year of observation; this rate is approximately 60 times that in the general population in Lima, and 25 times that in the 15- to 35-year-old age group. Our data indicate that patients who are positive for human immunodeficiency virus are at significantly increased risk for infection with S typhi and S paratyphi, and suggest that the clinical presentation of these diseases in patients with the acquired immunodeficiency syndrome differs from that seen immunocompetent hosts.
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PMID:Association between the acquired immunodeficiency syndrome and infection with Salmonella typhi or Salmonella paratyphi in an endemic typhoid area. 189 54

Between January 1982 and December 1983, health practitioners at 2 Belgian hospitals examined 26 Africans with human immunodeficiency virus (HIV) infection. 5 of these patients also had non-typhoid Salmonella bacteremia. These 5 patients originated from Zaire. 3 additional patients with both acquired immunodeficiency syndrome (AIDS) or AIDS-related complex (ARC) and Salmonella bacteremia were seen at a hospital in Rwanda. Researchers compared these 8 African patients with 16 non-African, non-HIV patients with Salmonella bacteremias. 4 of these 16 patients experienced associated gastroenteritis, but none of the AIDS or ARC patients had gastroenteritis which is often the case with HIV infections. The AIDS or ARC patients did, however, have a high recurrence rate and high prevalence of Salmonella typhimurium. Therefore, a longterm antibiotic prophylaxis seems appropriate for such patients even though there is a high frequency of side effects from antibiotics. Further studies are warranted to evaluate efficacy and toleration of longterm prophylaxis, such as with the antibiotics called quinolines, in HIV infected patients.
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PMID:Salmonella bacteremia in African patients with human immunodeficiency virus infection. 313 75

Among the opportunistic infections observed during infection with human immunodeficiency virus, recurrent non-typhoid salmonella bacteriemia has not been widely documented in Black Africa. This retrospective study identified 5 cases of non-typhoid salmonellosis in a series of 27 seropositive patients, i.e. 18.5%, hospitalized over a two-year period in an internal medicine department in Senegal. All 27 patients presented general or digestive manifestations and were in the stage of full-blown AIDS. The diagnosis was salmonella septicemia in 60% of cases. The incidence of salmonella is higher in immunocompromised patients than in healthy subjects, particularly in Africa. These infections frequently lead to bacteriemia, have a strong tendency to recur, and are highly indicative of immunodeficiency. Salmonellosis which is curable should be suspected in seropositive African patients presenting general and/or digestive manifestations.
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PMID:[Five cases of non-typhoid salmonellosis in patients infected with the human immunodeficiency virus in Senegal]. 756 93

Opportunistic prenatal infection is a recognized problem in human immunodeficiency virus (HIV)-infected women from inner city communities. We report a case of intrapartum Salmonella typhi infection and discuss the possible route of infection. An HIV-infected pregnant woman was admitted for fever and ruptured membranes. Maternal blood, cervical and uterine cultures, and placental surface and intramembranous space cultures grew S typhi. The patient responded to antibiotic therapy, with no relapse. The infant did not show signs or symptoms of Salmonella sepsis. Salmonella infection should be treated aggressively in HIV-infected pregnancies with chorioamnionitis and postpartum endometritis.
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PMID:Salmonella typhi chorioamnionitis in a human immunodeficiency virus-infected pregnant woman. A case report. 773 31

A retrospective analysis was done on the diagnosis of typhoid fever based on clinical symptoms and available laboratory data over the last 16 years from rural areas of four African countries. This analysis concentrated on the reliability of diagnosis without cultures which cannot be performed in most rural hospitals due to lack of the necessary expertise and equipment. The analysis showed the problem to be increasing perhaps because of interaction of salmonella infection with human immunodeficiency virus (HIV), malnutrition and other infections together with neglected sanitary facilities and lack of clean water. The use of certain cardinal clinical symptoms combined with available laboratory tests were shown to enhance the diagnosis of typhoid fever, especially in vulnerable persons. In conclusion the paper suggests that using the approach followed to obtain this data in rural tropical areas one can confidently make a diagnosis of typhoid fever.
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PMID:Typhoid fever: a review of its impact and diagnostic problems. 795 66

An important association between non-typhoidal salmonella bacteremia and human immunodeficiency virus (HIV) infection has been demonstrated in both industrialized and developing countries. In spite of the prevalence and public health importance of Salmonella typhi in developing countries, an association between HIV and S. typhi has not been well documented. This report describes the co-occurrence of HIV and S. typhi infections in a young Zimbabwean woman. Her presenting feature was a large artery occlusion, previously reported very rarely in association with typhoid fever and never with HIV infection.
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PMID:Salmonella typhi bacteremia and HIV infection with common iliac artery occlusion. 808 57

In typhoid perforation patients, Salmonella typhi was isolated from blood in 4%, ileal contents in 23%, peritoneal pus in 13% and from mesenteric lymph nodes in 71%. While isolation of S. typhi was made from patients with less than 4 days of chloramphenicol therapy, cultures were negative from these sites after 5 days of therapy; however, S. typhi appeared to remain viable in the lymph nodes even after such therapy. All isolates of S. typhi were sensitive to chloramphenicol. Significant SAT titers (0 > or = 1/240) were obtained in only 7/21 (33%) of patients. The perforated group had lower geometric mean titers (0-1/138; H-1/46), when compared to matched patients with uncomplicated typhoid fever (0-1/476; H-1/148). This difference was significant (0- p < 0.005; H- p < 0.0025). The two groups (uncomplicated and perforated) showed no significant difference in total serum IgG, IgM and IgA or isohemagglutinin levels, indicating that the apparent hyporeactivity was not due to a generalized humoral immunodeficiency. Mesenteric lymph node histology showed hyporeactivity in both the T cell and B cell zones. These findings are discussed with the suggestion that S. typhi-specific host immunological hyporeactivity could be an explanation for these observations and a basis for the pathogenesis of perforation. Aerobic cultures of the peritoneal pus gave 39 isolates from 25 patients; the predominant isolates were Escherichia coli (24) and Klebsiella pneumoniae (12). On no occasion was S. typhi the predominant isolate. Gentamicin and kanamycin were the only two antibiotics which were consistently effective in vitro against the aerobic isolates from peritoneal pus.
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PMID:Ileal perforation in typhoid: bacteriological and immunological findings. 836 85

We have defined human immunodeficiency virus type 1 (HIV-1) serologic reactivity in Brazilians living in an area endemic for tropical diseases. Enzyme-linked immunosorbent assay (ELISA) and Western blot (WB) analyses were performed on 342 patients with diseases including Chagas' disease, schistosomiasis, typhoid fever, helminthiasis, and cutaneous and visceral leishmaniasis. Nine percent of the visceral leishmaniasis patients' sera reacted in the HIV-1 ELISA but all were WB negative. All other sera from these patients were HIV negative. A total of 224 HIV-1 ELISA repeatedly positive sera also were HIV-1 WB tested. They were drawn from a total population of 19,230 individuals, including AIDS patients, blood donors, homosexual men, intravenous drug users, pregnant women, individuals with hemophiliac, and tuberculosis and sexually transmitted disease patients. The WB results were analyzed using five different interpretive criteria for WB positivity. The Centers for Disease Control (CDC) and the World Health Organization (WHO) criteria were the most sensitive and specific for identifying HIV-1-infected individuals. The WB pattern was similar to that seen in the United States. Envelope (ENV) protein antibodies were highly predictive of HIV-1 infection; none of the AIDS patients lacked ENV protein reactivity. We conclude that among the tropical diseases studied, only visceral leishmaniasis is associated with false-positive HIV-1 ELISA tests. Current CDC and WHO criteria for interpretation of HIV-1 WB tests are appropriate for Brazil.
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PMID:Serologic validation of HIV infection in a tropical area. 845 Apr 8


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