Root rot is a big hurter and a huge economic problem for the Swedish and European forestry. The severest hurter is Heterobasidion annosum (Fr.) Bref and it occurs as two different species in Sweden. Commonly referred to as the P-type (Heterobasidion annosum s.s. (Fr.) Bref.) and the S-type (Heterobasidion parviporum Niemelä & Korhonen). Therefore a lot of research has been carried out in this topic to find a solution and reduce this problem, one alternative that have shown to be profitable is stump treatment in thinnings.

Postoperative site infections are the second most common health care associated infection in Sweden. Surgical procedures can lead to postoperative site infection causing great suffer for the patient and an extended care time with an increased cost as a result. In preparation for surgery, it is important that the skin is well prepared with antiseptics to decrease the risk of postoperative site infection. The purpose with this study was to shed light upon the skin preparation before surgery and its significance to postoperative site infection. Ten scientific articles have been scrutinized and compiled and two themes have been identified ? the preoperative and the intraoperative skin preparation.

Surgical site infections are a recurrent problem in veterinary medicine. A 2-5 % infection rate in clean surgery has been reported. During the last years the increase in methicillin resistant staphylococci has also taken its toll on veterinary medicine, demanding a stricter hygiene and antibiotic regime. The 2008 outbreak of methicillin resistant Staphylococcus aureus (MRSA) at the University animal hospital, Swedish University of Agriculture indicated that that the MRSA problem was now a real, possibly zoonotic problem.Since the first dog, in Sweden, was diagnosed as a carrier of methicillin resistant Staphylococcus pseudintermedius (MRSP) in a study in 2006, the infection rate by this bacterium has increased. In 2009 (January 1st - December 2nd) the National Veterinary Institute (SVA) has identified 58 samples as MRSP positive.

Hepatitis E virus, HEV, is a frequent causative agent behind, especially waterborne, infections in developing countries such as India. However, during the last years the number of non-travel-associated infections in industrialised countries, for example US, Germany and Sweden, has increased. The symptoms vary from mild with nausea to icterus and it can even be lethal. There are four different genotypes of HEV and many studies consider HEV infection to be a zoonosis. Scientists have by using phylogenetic analyses found great genetic similarity between strains isolated from humans, pigs and food, such as pork and liver, especially among viruses belonging to genotype 3.

There are several different kinds of bacteria that has developed resistance against the antibiotic agents used in todays medicine. Most of them has evolved from the human health care but several of them has gone over to also cause problems in the animal health care. They often occur as nosocomial infections and the greatest risk of exposure to them is during health care. Since infections with a resistant bacterium can be difficult to treat, it is desirable to prevent this spread, especially since an animal treated in a hospital often is more susceptible to infection, due to their primary condition. In Sweden the current resistance situation is good and is yearly monitored by the Swedish Veterinary Antimicrobial Resistance Monitoring (SVARM) programme.

The background to this thesis is that we know very little about lesbian and bisexual women's sexual health in Sweden, particularly in relation to sexually transmitted infections (STI) and their transmissions. An internet-based questionnaire with self-selected participants targeted to the group WSW (Women who have Sex with Women) has been implemented. An international survey on the subject shows that the WSW has sexually transmitted infections. This is also in line with the results in this study. The most common sexually transmitted infection in the survey is chlamydia which 12.3 percent have had.

During the last years, meticillin resistant Staphylococcus pseudintermedius (MRSP) have caused an increasing number of infections in Swedish dogs. MRSP is resistant against a majority of the antimicrobials available for dogs in Sweden, making it difficult to treat the infection. Our knowledge of the bacterium is limited, making it hard to handle infected dogs in a proper way. The aim of this study was to investigate for how long time dogs, who have an infection caused by MRSP, become carriers of the bacterium. Other factors like treatment with antimicrobials, the correlation between clinical symptoms and carriage, common diagnoses and institutionalization where also looked upon.

Aim: The aim of this paper was to investigate whether scientific evidence exists to improve, of students? perceived, insufficient infection control in isolation facilities in companion animal hospitals in Sweden. Material and methods: A question was emailed to the students in the last year of the animal nursing program at SLU in the spring 2012 to get their view of perceived insufficient infection control. A literature study was thereafter preformed using the search engine Web of Knowledge. Results: The students reported several perceived shortcomings which were divided into five categories: basal hygiene, isolation routines, cleaning and disinfection, patient flow and other. Studies supporting that the shortcomings perceived by the students also exist in human health care and to some extent in animal clinics and hospitals were found. Furthermore, scientific evidence that improved hand hygiene, glove procedures and cleaning and disinfection reduces the risk of nosocomial infections in humans was reported. Conclusion: There is not a lot of research performed in the area of infection control in animal nursing.

SUMMARYPrevious research has shown that there is a connection between the doorways and postoperative wound infections. Despite recommendations from Socialstyrelsen and the individual hospitals' PM there is still high traffic in the operating theatres. In a hybrid theatre environment combined X-ray techniques of surgery, resulting in it being further two categories inside the operating theatre. This may generate an increase in traffic flow. The study is a prospective, non-participant observation study conducted in the spring of 2013 at a university hospital in western Sweden.

Each year, Heterobasidion spp. is a major cause of economic losses to forestry in the northernhemisphere, including Sweden. New results indicate that pre?commercial thinnings could be at riskfor Heterobasidion spp. infections.

Infection with intestinal parasites can in many cases be the reason for decreased performance or production. The gastro-intestinal nematode, Ostertagia ostertagi, and the lungworm, Dictyocaulus viviparus, are the most pathogenic nematodes of cattle and severe infection can lead to death. They have both a direct lifecycle and on the pasture the parasites spread as freeliving worms. The parasites are mainly a problem for the first season grazers. They have not developed immunity against the parasites and are therefor more sensitive to parasite infections.

The Lodgepole pines susceptibility to Heterobasidion spp. was investigated in three parts ofthis study. In the first part, discs from freshly cut stumps were collected and analyzed to seeif the fungi can spread and grow naturally in Lodgepole pine stands. In the second part, rootsamples were collected from Lodgepole pines planted in former infected Norway sprucestands to see if the fungi can spread through root contacts. For the third part, new stumpswas created and artificially infected with spores of both the S?type (H.

Background: Nosocomial infections pose a big threat to patient safety and increased costs for society. An effective way of preventing cross-infections is to apply hygiene routines. Studies show that compliance to hygiene routines is low while there's a lack of knowledge about the best way of improving it. Aim: To investigate whether a conversation based on the Theory of Planned Behaviour (TPB) could influence a nurse's compliance to hygiene routines and whether it could benefit the understanding of a nurse's compliance. Method: A quantitative and qualitative method was used in the study and included one nurse.

The conservation of great apes faces many challenges, one of which is the threat of infectious disease outbreaks. Zoonotic transmission of respiratory diseases from humans to wild great apes has recently been confirmed. Since respiratory disease is one of the major causes of death in both gorillas and chimpanzees, this gives reason for major concern. Little is known about the risks of disease transmission from humans to great apes in natural environments, and there is a need for systematic risk evaluation. Researchers, conservation staff and tourists spend time in very close proximity of wild great apes, sometimes during long time periods, which poses a potential risk of disease spillover. However, the presence of researchers and tourists has been shown to decrease the risk of poaching, making the matter increasingly complex.

Mastitis is an important disease in dairy cattle. It is very costly for the farmers and affects a large number of animals. Few studies have been made investigating the outcome of treatment for acute clinical mastitis under Swedish conditions, and it can be problematic to use the results in foreign studies since both the microbial flora as well as treatments may be different from the situation in Sweden. In this project we have investigated data on clinical mastitis and antibiotic treatment in the dairy herd at Jällaskolan, Uppsala based on recordings during the last ten years. The material includes both Swedish Red (SRB) and Swedish Holstein (SLB) breeds, which have been kept at the farm under similar conditions.