Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 1998;39(1):119-26.
doi: 10.1186/BF03547813.

Bovine mastitis in Finland in 1988 and 1995--changes in prevalence and antimicrobial resistance

V Myllys  1 , K Asplund, E Brofeldt, V Hirvelä-Koski, T Honkanen-Buzalski, J Junttila, L Kulkas, O Myllykangas, M Niskanen, H Saloniemi, M Sandholm, T Saranpää
Affiliations

Bovine mastitis in Finland in 1988 and 1995--changes in prevalence and antimicrobial resistance

V Myllys et al. Acta Vet Scand. 1998.

Abstract
in English, German

Two surveys were carried out (during 1988 and 1995) to estimate the prevalence of bovine mastitis in Finland. In 1988, 17,111 quarter milk samples were obtained from 4495 cows, and in 1995 the corresponding figures were 10,410 and 2648. Antimicrobial susceptibility of mastitis pathogens was studied. Prevalence of mastitis on cow basis decreased from 47.8% in 1988 to 37.8% in 1995. Staphylococci was the largest group of pathogens isolated. The proportion of Staphylococcus aureus decreased and that of coagulase-negative staphylococci (CNS) increased. The proportion of strains resistant to at least one antibacterial drug increased with regard to S. aureus from 36.9% in 1988, to 63.6% in 1995 and with CNS from 26.6% to 49.7%. Most of the increase in antibacterial resistance was due to a higher number of beta-lactamase producing strains. Multiresistance also increased, but it was proportional to the overall increase in resistance. All the predominant mastitis streptococci were susceptible to beta-lactams tested.

Två undersökningar utfördes (under åren 1988 och 1995) för att beräkna förekomsten av mastit i Finland. År 1988 togs mjölkprov från 17111 juverfjärdedelar av sammanlagt 4495 kor. År 1995 var motsvarande antal 10410 och 2648. Man undersökte mastitpatogenernas känslighet mot antibiotika. Mastit prevalensen minskade från 47.8% 1988 till 37.8% 1995. Stafylokockerna utgjorde den största gruppen av isolerade patogener. Antalet Staphylococcus aureus minskade medan de koagulas-negativa stafylokockerna (CNS) ökade. Stammar som var resistenta mot åtminstone ett antibiotikum ökade med avseende på S. aureus från 36.9% 1988 till 63.6% 1995 och med avseende på CNS från 26.6% till 49.7%. Ökningen i antimikrobiresistens berodde främst på ett högre antal β-lactamasproducerande stammar. Även resistensen mot flera antimikrobiella medel ökade, men motsvarade proportionellt sett den allmänna ökningen av resistens. De främsta mastitstreptokokkerna var känsliga för de β-lactamer som testades.

PubMed Disclaimer

References

    1. Anonymous: Bovine mastitis. Definition and guidelines for diagnosis. Bulletin of IDF, 1987, 211, 1–24.
    1. Anonymous: Performance standards for antimicrobial disk and dilution susceptibility tests for bacteria isolated from animals; proposed standard. NCCLS Document M31-P, 1994,14, 45 pp.
    1. GL A, MW C. Antimicrobial susceptibility of coagulase-negative staphylococci. Antimi-crob. Agents Chemother. 1994;38:2231–2237. doi: 10.1128/AAC.38.10.2231. - DOI - PMC - PubMed
    1. RJ E, RJ E, LI H, SB S, MA C. Incidence and types of clinical mastitis in dairy herds with high and low somatic cell counts. J. Am. Vet. Med. Assoc. 1988;192:761–765. - PubMed
    1. L F, I D, A D. A case-control study of Nocardia mastitis in Nova Scotia dairy herds. Can. Vet. J. 1991;32:673–677. - PMC - PubMed

MeSH terms

Substances

LinkOut - more resources