A sample of milk inoculated with S. aureus was treated with penicillin, and Antipen (a new commercial product containing penicillinase) was added. To another sample with S. aureus and penicillin, formic acid to pH 5 was added, and to yet another sample, a combination of formic acid and Antipen was added. Controls with no penicillin were treated in the same way.

Penicillin G (benzylpenicillin) is the most commonly used antimicrobial substance used in equine medicine today. Two forms of Penicillin G are available for equine use; one form is the poorly soluble Penicillin G procaine and the other is the very soluble sodium salt. Although penicillin has a wide safety margin and is considered to possess a good tolerance, reactions due to side effects are sometimes encountered, which commonly is named ?penicillin-shock?. The etiology behind penicillin shock in horses is not completely understood, but the most common reason is believed to be procaine toxicity.

The use of intramuscular injections of procaine Penicillin G (bensylpenicillin procaine) in the horse is now and then associated with acute adverse reactions (penicillin-chock). The etiology is not yet clearly understood, but the theories are several. One possibility is that it can be caused by procaine toxicity. Procaine Penicillin G is a salt which is quickly dissolved in plasma. Procaine is then metabolized by plasmaesterases to non-toxic metabolites, p-aminobenzoic acid (PABA) and diethylaminoethanol.

In veterinary medicine, penicillin is the most used antibiotic in Sweden. Two dosage forms of penicillin are available in Sweden for use in horses, sodium benzylpenicillin (Na-pc) and procaine benzylpenicillin (proc-pc). Proc-pc is the most used dosage form and is used for intramuscular administration which allows horse owners to treat an animal at home under veterinary instruction. Na-pc is only approved for intravenous use in horses. Penicillin is normally well tolerated by horses but a serious, sometimes life-threatening, adverse reaction called penicillin shock may occur.

Staphylococcus aureus is the most clinically important Staphylococcus species and is associated with high mortality in patients with positive blood cultures. S. aureus bacteria may cause a variety of disease manifestations ranging from minor skin infections to life-threatening conditions such as pneumonia, meningitis, osteomyelitis, endocarditis, toxic shock syndrome (TSS) and sepsis. This microorganism belonging to the gram positive cocci may also be part of the normal flora. In Sweden, penicillinase-stable penicillins are the primary alternatives to treat S.

Akut metrit drabbar kor 1-2 veckorna efter kalvning med symtom som feber ?39,5º, nedsatt allmäntillstånd och illaluktande vaginala flytningar. Denna typ av livmoderinflammation står för 64% av den totala mängd antibiotika som används vid behandling av reproduktionsstörningar. Idag rekommenderas behandling med penicillin vid akut metrit baserat på klinisk erfarenhet, aktuell litteratur och branschens generella inställning till antibiotikaanvändning och resistensutveckling, men ingen fältstudie har tidigare gjorts i Sverige inom detta område. Bovint herpesvirus typ 4 (BHV-4) är internationellt känt för att ha påverkan på livmodern i samband med metrit. Viruset är spritt över stora delar av världen men har ännu ej påvisats i Sverige.

Staphylococcus aureus is the most clinically important Staphylococcus species and is associated with high mortality in patients with positive blood cultures. S. aureus bacteria may cause a variety of disease manifestations ranging from minor skin infections to life-threatening conditions such as pneumonia, meningitis, osteomyelitis, endocarditis, toxic shock syndrome (TSS) and sepsis. This microorganism belonging to the gram positive cocci may also be part of the normal flora. In Sweden, penicillinase-stable penicillins are the primary alternatives to treat S.

Staphylococcus aureus is the most clinically important Staphylococcus species and is associated with high mortality in patients with positive blood cultures. S. aureus bacteria may cause a variety of disease manifestations ranging from minor skin infections to life-threatening conditions such as pneumonia, meningitis, osteomyelitis, endocarditis, toxic shock syndrome (TSS) and sepsis. This microorganism belonging to the gram positive cocci may also be part of the normal flora. In Sweden, penicillinase-stable penicillins are the primary alternatives to treat S.

Staphylococcus aureus is the most clinically important Staphylococcus species and is associated with high mortality in patients with positive blood cultures. S. aureus bacteria may cause a variety of disease manifestations ranging from minor skin infections to life-threatening conditions such as pneumonia, meningitis, osteomyelitis, endocarditis, toxic shock syndrome (TSS) and sepsis. This microorganism belonging to the gram positive cocci may also be part of the normal flora. In Sweden, penicillinase-stable penicillins are the primary alternatives to treat S.

Subclinical mastitis (SCM) is a well-known problem in the dairy sector, where it causes severe economic losses mainly due to reduced milk production. This is a problem not only in the western world but also in developing countries. Surveys from different developing countries have shown a SCM prevalence of 52.4 ? 88.6 % at cow level and 26.7 ? 63.2 % at quarter-level. To combat mastitis is important to optimize the milk production of the cow.

Bensylpenicillin är den mest använda antibiotikan till häst i Sverige idag. Den beredning som skrivs ut till djurägare är framförallt bensylpenicillinprokain, men många hästar får kraftiga biverkningar av preparatet. Biverkningarna kan vara milda så som skakningar eller nervositet, men kan också bli livshotande. Forskning visar att prokain kan vara orsaken till majoriteten av biverkningar, vilket gör att bensylpenicillin utan prokain kan bli aktuellt att använda för att minska risken för biverkningar och öka djurvälfärden. Att byta antibiotika till trimetoprim i kombination med sulfonamid är ej önskvärt då det antibakteriella spektrat då vidgas.

Bensylpenicillin är den mest använda antibiotikan till häst i Sverige idag. Den beredning som skrivs ut till djurägare är framförallt bensylpenicillinprokain, men många hästar får kraftiga biverkningar av preparatet. Biverkningarna kan vara milda så som skakningar eller nervositet, men kan också bli livshotande. Forskning visar att prokain kan vara orsaken till majoriteten av biverkningar, vilket gör att bensylpenicillin utan prokain kan bli aktuellt att använda för att minska risken för biverkningar och öka djurvälfärden. Att byta antibiotika till trimetoprim i kombination med sulfonamid är ej önskvärt då det antibakteriella spektrat då vidgas.

Bensylpenicillin är den mest använda antibiotikan till häst i Sverige idag. Den beredning som skrivs ut till djurägare är framförallt bensylpenicillinprokain, men många hästar får kraftiga biverkningar av preparatet. Biverkningarna kan vara milda så som skakningar eller nervositet, men kan också bli livshotande. Forskning visar att prokain kan vara orsaken till majoriteten av biverkningar, vilket gör att bensylpenicillin utan prokain kan bli aktuellt att använda för att minska risken för biverkningar och öka djurvälfärden. Att byta antibiotika till trimetoprim i kombination med sulfonamid är ej önskvärt då det antibakteriella spektrat då vidgas.

Mulitresistent staphylococcus aureus (MRSA) is a bacteria that is resistent against penicillin, this makes it difficulte to treat. MRSA causes woundinfections and other seriouse conditions. If MRSA establishes in an hospital environment it often spreads fast. Common ways of spreading MRSA is through direct or indirect contact. The nurse should work according to guidelines, apply hygienic routines and prevent the spread of infections.

The focus of this project was to characterize the occurrence of ESBL-­?producing bacteria in two irrigation water ponds in Southern Sweden. Samples were taken from two ponds nearby each other, from which analyses were made based on levels of community and individual isolates. Community samples were used for attempts for characterization of resistance patterns in irrigation water using the Omnilog PM-­?plate system. The growth of community microbiota in the presence of the following antibiotic substances was assessed; amikacin, gentamicin, kanamycin, penicillin G, ampicillin, piperacillin, trimethoprim, potassium tellurite and ciprofloxacin. Isolates were pure cultured using semi-­?selective media: LB, Rainbow Agar, mEnterococcus, 0.1 TSA and VRBD. A total of 177 isolates were isolated randomly. Each isolate was identified using the Omnilog GENIII-­?system of biochemical characterization. Further, the isolates were tested on Brilliance ESBL-­?agar for their ability to grow. Out of the total number of isolates, 30 were selected, preferably Enterobacteriaceae or Pseudomonas spp., based on their high similarity to library strain during the identification in the Omnilog-­?system. These were further characterized using Etest-­?sticks. Three selected strains were picked for further analyses using exogenous isolation for attempts to simulate horizontal gene transfer, and Omnilog PM-­?panels containing various antibiotics of interest. Selections of samples were chosen for molecular tests targeting plasmid-­?borne resistance genes CTX-­?M1, CTX-­?M2 and SHV. The method for assessing community-­?resistance patterns showed ambiguous data that was difficult to interpret; further optimization is recommended. For all tested PM-­?plates, generally greatest differences between substances were found among wells with the strongest concentration of antibiotic substance. A total of 175 isolates displayed ability to grow on ESBL-­?agar. Etests confirmed ability of isolates to resist many ?-­?lactam antibiotics and many were clinically resistant to certain substances. No plasmids were transferred during exogenous isolation. During molecular tests, a few matches were found for the CTX-­?M1 gene. Isolates analyzed with Omnilog PM-­?plates showed resistance to most compounds tested. The isolates showed greatest resistance toward penicillin G, ampicillin, amikacin, kanamycin and trimethoprim. In the study, it was established that resistance among bacteria was frequently occurring in the irrigation water, and ?-­?lactamase producing bacteria was very common. Extended studies are needed to assess the frequency-­? and occurrence of horizontal gene transfer (HGF) in this environment. Although some potential corresponding data is found, it is at this point not possible to determine whether the resistances are due to antibiotics used in veterinary medicine, human medicine or one additional reason is travel and trade. in irrigation water using the Omnilog PM-­?plate system. The growth of community microbiota in the presence of the following antibiotic substances was assessed; amikacin, gentamicin, kanamycin, penicillin G, ampicillin, piperacillin, trimethoprim, potassium tellurite and ciprofloxacin. Isolates were pure cultured using semi-­?selective media: LB, Rainbow Agar, mEnterococcus, 0.1 TSA and VRBD. A total of 177 isolates were isolated randomly. Each isolate was identified using the Omnilog GENIII-­?system of biochemical characterization. Further, the isolates were tested on Brilliance ESBL-­?agar for their ability to grow. Out of the total number of isolates, 30 were selected, preferably Enterobacteriaceae or Pseudomonas spp., based on their high similarity to library strain during the identification in the Omnilog-­?system. These were further characterized using Etest-­?sticks. Three selected strains were picked for further analyses using exogenous isolation for attempts to simulate horizontal gene transfer, and Omnilog PM-­?panels containing various antibiotics of interest. Selections of samples were chosen for molecular tests targeting plasmid-­?borne resistance genes CTX-­?M1, CTX-­?M2 and SHV. The method for assessing community-­?resistance patterns showed ambiguous data that was difficult to interpret; further optimization is recommended. For all tested PM-­?plates, generally greatest differences between substances were found among wells with the strongest concentration of antibiotic substance. A total of 175 isolates displayed ability to grow on ESBL-­?agar. Etests confirmed ability of isolates to resist many ?-­?lactam antibiotics and many were clinically resistant to certain substances. No plasmids were transferred during exogenous isolation. During molecular tests, a few matches were found for the CTX-­?M1 gene. Isolates analyzed with Omnilog PM-­?plates showed resistance to most compounds tested. The isolates showed greatest resistance toward penicillin G, ampicillin, amikacin, kanamycin and trimethoprim. In the study, it was established that resistance among bacteria was frequently occurring in the irrigation water, and ?-­?lactamase producing bacteria was very common. Extended studies are needed to assess the frequency-­? and occurrence of horizontal gene transfer (HGF) in this environment. Although some potential corresponding data is found, it is at this point not possible to determine whether the resistances are due to antibiotics used in veterinary medicine, human medicine or one additional reason is travel and trade..