TY  - JOUR
T1  - Morpho Metrical Evaluation of Preescapular Lymph Nodes from Cattle Vaccinated with <I>Brucella abortus</I> Strains S19 or RB51
AU - Martinez-Herrera, David Itzcoatl AU - Barradas-Pina, Francisco Tobias AU - Peniche-Cardena, Alvaro Enrique de Jesus AU - Serna-Montero, Ruben Dario AU - Morales-Alvarez, Francisco AU - Flores-Castro, Ricardo AU - Loeza-Limon, Ruben AU - Robledo-Salinas, Maria Luisa 
JO  - Journal of Animal and Veterinary Advances
VL  - 11
IS  - 4
SP  - 521
EP  - 525
PY  - 2012
DA  - 2001/08/19
SN  - 1680-5593
DO  - javaa.2012.521.525
UR  - https://makhillpublications.co/view-article.php?doi=javaa.2012.521.525
KW  - Brucellosis
KW  -lymphatic tissue
KW  -dosage
KW  -dimension
KW  -safe
KW  -macroscopic
AB  - With the aim of measuring preescapular lymph node response in bovines vaccinated with either S19 or RB51 <I>Brucella abortus</I> strains vaccines, two herds were selected. About 40 females were divided in two groups of 20; group 1 was vaccinated and group 2 left as unvaccinated control. Vaccinated group, 3 and 6 months females were vaccinated with 5x10<SUP>10</SUP> Colony Forming Units (CFU) dosage and &gt;6 with a 3x10<SUP>8</SUP>-3x10<SUP>9</SUP> S19 strain. For the second herd same age females and dosage was used but applying RB51 strain. Vaccines were subcutaneously applied at mid third on left side of the neck. Preescapular lymph nodes were measured in length and wide at 90 and 180 days after vaccination. Results were analyzed by Chi-square. At 90 days post vaccine, lymph nodes dimensions were 3.7-4.8 cm widex10-11.7 cm length and for unvaccinated 3.8-4.5x10-11.5 cm. No statistical differences were found (p&gt;0.05) among vaccinated and unvaccinated controls. After 180 days post vaccine similar results were found with RB51 for both groups but strain 19 vaccinated herd was different (p&lt;0.05) however, differences were found in control group. Results indicate that both strains are efficiently processed by lymphatic tissue among 90 days after vaccination and therefore, they may be considered as safe without producing macroscopic changes that alter organ dimensions.
ER  -