Introduction: Meningococcal meningitis now represents a significant public health problem, not only in developing countries but also in developed ones. The disease usually occurs sporadically, and much less in smaller epidemics. Material and methods: We retrospectively analyzed the epidemiological characteristics of meningococcal meningitis in the area of Zenica-Doboj Canton in the five-year period from 2008 to 2012th. In total there were 38 reported and hospitalized patients, with an average of 7-8 patients per year. Results: Most commonly disease occurred in infants and young children (28.9%). The highest number was recorded in 2011, 10 cases or (26.3%). Most patients in the monitored period were registered in the municipality of Zenica–12 cases (31.6%) and Zepce 8 cases (21.1%). All hospitalized patients were sporadic cases, there has never been an epidemic in the observed period. Conclusions: Epidemic Meningitis is a very serious disease and a significant public health problem that requires a serious medical scientific approach for its resolution, primarily in finding adequate vaccine and its administration.

Introduction: Meningococcal meningitis now represents a significant public health problem, not only in developing countries but also in developed ones. The disease usually occurs sporadically, and much less in smaller epidemics. Material and methods: We retrospectively analyzed the epidemiological characteristics of meningococcal meningitis in the area of Zenica-Doboj Canton in the five-year period from 2008 to 2012th. In total there were 38 reported and hospitalized patients, with an average of 7-8 patients per year. Results: Most commonly disease occurred in infants and young children (28.9%). The highest number was recorded in 2011, 10 cases or (26.3%). Most patients in the monitored period were registered in the municipality of Zenica–12 cases (31.6%) and Zepce 8 cases (21.1%). All hospitalized patients were sporadic cases, there has never been an epidemic in the observed period. Conclusions: Epidemic Meningitis is a very serious disease and a significant public health problem that requires a serious medical scientific approach for its resolution, primarily in finding adequate vaccine and its administration.

Lejla ̂ ALKI] 1), 3), prim. doc. dr. sc., dr. med., specijalist infektolog, subspecijalist gastroenterohepatolog Srboljub GOLUBOVI] 2), prof. dr. sc., dr. med., specijalist infektolog, subspecijalist imunolog Lejla BAJRAMOVI]-OMERAGI] 1), dr. med., specijalist klini~ki imunolog Salih TANDIR3), prof. dr .sc., dr. med., specijalist epidemiolog Eldira HAD@I] 1), 3), prim. mr. sc., dr. med., specijalist infektolog

Association of Gastroenterologists and Hepatologists of Bosnia and Herzegovina based on the experiences of domestic and foreign centers operating in the field of hepatology and accepted guidelines of the European and the U.S. Association for Liver Diseases adopted the consensus for the diagnosis and treatment of chronic viral hepatitis B and C. The guidelines are intended for specialists in gastroenterology and hepatology, and infectious diseases physicians working in primary health care and family medicine, but also other physicians who are confronted with this disease in their practice, with the aim of facilitating and shortening the diagnostic and treatment protocols of patients with chronic viral hepatitis B and C. This ensures faster, more efficient, more rational and cost-effective care of patients with hepatitis, with an emphasis on stopping the deterioration of liver disease to liver cirrhosis and eventually hepatocellular carcinoma. Key words: Chronic hepatitis B and

INTRODUCTION Leptospirosys belong to zoonoses that affects both humans and animals, and they are caused by the bacterias of leptospira sort. This is a relatively widely spread illness in the majority of countries around the world as well as in our country, whit often epidemic occurrence. The goal of the paper is to point out the importance of leptospira as a potential cause for individual or epidemic sickening of miners at the "Stara Jama" mine in Zenica. MATERIAL AND METHODOLOGY This research is conducted on a sample of 31 respondents--miners at the "Stara Jama" mine in Zenica during the epidemic of leptospirosys from 1st august until 6th September 2005. Selection of suspected patients is done based on a clinical signs of illness. All hospitalized had high fever, headache and hepatorenal syndrome. All complete and relevant tests are done for the 30 respondents, and from 26 of them one or two serum samples are taken, while from 4 patient's three samples are taken. Serological examination is conducted by the standard method of microscopic agglutination - liza-test with 14 serotypes of leptospira, RESULTS From the baseline of 30 respondents in 16 cases existed serological confirmation of leptospirosys etiology of illness. Among them also is determined a presence of specific antibodies in I, II and/or III serum sample for the certain serotypes of leptospira. Among other 14 hospitalized, from the sample of 30 respondents we did not find increase in titre for the specific antibodies within samples. Illness developed mainly among those in the age group between 24 and 56 years, and the highest frequency was between 20 and 50 years of age among male respondents. Antibody titre within the taken samples was in a solution 1:100 up to 1:16000, and the highest tested titres were for the L. Ballum, L. Tarassovi, L. Poi and L. Icterohaemorrhagiae. DISCUSSION AND CONCLUSION Vectors for the leptospirosys in our environments are mainly rodents (mice's and rats, wild mice's, and voles) that lives in the vicinity of the settlements and which represents natural reservoir of illness. Epidemiological researches, especially in the environments such as mines, as one of the natural reservoirs, can be a significant indicator of frequency and development and this disease, which is one of the reasons why we choose to explore characterictics of the leptospirosys epidemic in the Mine "Stara Jama" in Zenica, and based on results and experience take adequate preventive actions in order to prevent some future occurrence of similar epidemic.

The target organ for Puumala (PUU) and Dobrava (DOB) viruses is the kidney, but the impact on renal function seems far more important in DOB infection than in PUU infections. Aim of study was to estimate the renal failure and capillary leak during the acute stage of DOB-infection and PUU-infection. 50 patients with serological conformed diagnosis of acute hantavirus infection were included in the study. Diuresis, serum urea and creatinine were measured. Size of kidneys and presence of ascites was followed by ultrasonography. Enlargement of both kidneys were found in all (100%) patients. Ascites was present in 8/25 (32%) DOB patients; in 1/25 (4%) PUU patient and pleural effusion in four 4/25 (16%) DOB patients. The statistically significant difference in the mean urinary output was during 5th, 6th and 7th day of hospitalization (P<0,05). Serum creatinine and urea levels were at significantly higher levels for DOB than for PUU patients (P<0,05). Acute haemodialysis was needed in 7/25 (28 %) of the DOB patients. One DOB patient died. DOB virus infection is associated with a more severe kidney function disorders than PUU virus infection. Capillary leak, which caused swollen of kidney and ascites is probably the pathogenesis key factor.

UNLABELLED Bosnia and Herzegovina has been known as a highly endemic region for Hantavirus infections for more than 50 years. Previous studies have shown that at least two different hantaviruses, the murine Dobrava (DOB) and avricoline Puumala (PUU) viruses, each carried by a different rodent species, have been circulating in the area. However, there is little information on rodent population density fluctuations in Bosnia over the past years as well as on the ratio of Puumala to Dobrava infection in humans. THE AIMS THE AIMS OF OUR STUDY WERE to identify the rodent species which may serve as hantavirus reservoirs in the north-east and central Bosnia; to assess the geographical distribution, density and population dynamics of rodent species in the area; to assess the influence of climatic conditions on the size of rodent population; and to determine the ratio of Puumala to Dobrava infection in humans. METHODS The epidemiologic and epizootic study in the north-east and central Bosnia was conducted during the 8-year period (1995-2003). The average yearly and monthly temperatures, air humidity and precipitation during the study period were analyzed. A total of 381 small rodents were caught during the epidemic years (1995 and 2002), and in-between the epidemic periods (1999 and 2000). The animals were caught by live-traps and identified by morphometric methods. The density of animals was estimated by counting the number of holes per 1000 m2. Sera of 311 patients with clinical signs and symptoms of hemorrhagic fever with renal syndrome (HFRS) were tested for the presence of antibodies reactive to the Dobrava, Puumala and Seoul viruses by using indirect immunofluorescence test (IIF), and IgG and IgM ELIS. Sera of 84 patients were tested using only IIF, and 227 sera were tested by IIF and -capture IgM ELIS tests. RESULTS During the epidemic years, the average monthly temperatures in February were by 4.3 times higher than the average temperatures during the nonepidemic years, which may have influenced the early reproduction of rodents and development of "mouse years". The rodents were identified as: Apodemus flavicollis (n = 139), Apodemus sylvaticus (n = 89), Apodemus agrarius (n = 4), Clethrionomys glareolus (n = 117), Sorex araneus (n = 5), Pytimus subterraneus (n = 23), Mus musculus (n = 1), Mycrotus arvalis (n = 1) and Rattus norvegicus (n = 2). Clethrionomys glareolus was predominant in the regions with the altitude higher than 1160 meters and Apodemus species in the regions with the altitude lower than 670 meters. The rodent population density changes seasonally and cyclically. During the epidemic years, the rodent population density was marked as very high, whereas during the nonepidemic years it was designated from low to moderate. Well-known natural hosts of Hantaviruses (A. flavicolis and C. glareolus) are most widely spread species of small rodents, and the increase in their population is closely related with outbreaks of epidemics of HVBS-a. Puumala virus caused HVBS-a in 49.84% (155/311); Dobrava virus in 23.15% (72/311) of cases, whereas Hantaviruses serotype was not identified in 27.00% (84/311) of cases. Infections caused by Puumala virus were more frequent than the infections caused by Dobrava virus during both epidemic and nonepidemic periods. The proportion of humans infected with Puumala and Dobrava viruses correlated with the number of natural hosts of Hantaviruses in the areas of HVBS outbreaks. The study of the prevalence of hantavirus antibodies in the populations of rodents and humans, which had been under way, should elucidate these relationships.

Early transition from parenteral to oral antibiotic therapy switch therapy play a major role in treatment because of adverse reactions of long parenteral therapy. In the prospective, comparative and randomized clinical study the efficacy of two treatment regimens were analyzed: XICLAV (amoxicillin + clavulanic acid): parenteral regiment with early transition to oral therapy and parenteral regimen in patients with bacterial infections without transition to the oral dosage form, on the other hand. In our study we've analyzed 240 hospitalized patients in the Clinic of infectious Diseases in Tuzla and Sarajevo too, so in the Institution for infectious diseases in Zenica. The mean age of our patients was 39.6 years, 70.8% females. The major (50.5%) patients had urinary or respiratory tract infectious (bacterial pneumonia 38.8%) but several patients have had skin infections and sepsis. The first 120 patients were initially treated by Xiclav administered parenterally i.v. (adults at a dose of 3 x 1.2 gr i.v.; the children at a dose of 3 x 30 mg/kg) with early oral switch therapy (adults at a dose of 3 x 625 mg per os; the children at a dose of 3 x 25-50 mg/kg); whereas the others (120 patients) were treated parenterally by the regimen mentioned above. The mean length of i.v. therapy and hospitalization in the i.v. group was 4.12/10.21 days respectively (p > 0.05). The clinical efficacy switch of both therapeutic regimens was comparable. The resolution of all clinical symptoms and laboratory signs of infections was noted at 69% patients of both groups, with significant improvements at noted at 69% patients of both groups, with significant improvements at 21% patients and at 10% patients showed clinical failure. The tolerability of Xiclav was very good. The adverse reactions during treatment were observed at 5.2% patients. This study noticed satisfied clinical and bacterial efficacy so did tolerability of Xiclav in the treatment of bacteriological infections. Xiclav apply early transition from parenteral to oral therapy.