{"id":5094,"date":"2026-04-23T09:36:47","date_gmt":"2026-04-23T08:36:47","guid":{"rendered":"https:\/\/poulpharm.vermis.hu\/?p=5094"},"modified":"2026-04-28T14:26:56","modified_gmt":"2026-04-28T13:26:56","slug":"poulpharm-glaesserella-parasuis","status":"publish","type":"post","link":"https:\/\/poulpharm.vermis.hu\/?p=5094","title":{"rendered":"Poulpharm Glaesserella parasuis"},"content":{"rendered":"

Poulpharm Glaesserella parasuis<\/h1><\/h3><\/div>
<\/span><\/div>
\n
\n
\n
\n
\n
\n
\n
<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n
\n
\n
\n
\n
\n
\n

Practical advice to reduce Gl\u00e4sser\u2019s disease impact<\/strong><\/h4>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
\n
\n
<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n<\/div>


\nGlaesserella parasuis<\/em>\u00a0has a high genetic variability and can generate complex co-infections. This article describes some practical steps to reduce Gl\u00e4sser\u2019s disease impact.<\/strong><\/h4><\/h3><\/div>

Glaesserella (Haemophilus) parasuis<\/em>\u00a0is responsible for Gl\u00e4sser\u2019s disease and it remains a key pathogen in the swine health landscape, particularly around weaning and other stress-related periods. Although commonly present in the upper respiratory tract, disease arises when virulent strains coincide with stress or co-infections.<\/h4><\/h3><\/div>

Why it still matters?<\/h4><\/h3><\/div>
\n
\n
\n
\n
\n
\n
\n
Clinically,\u00a0G. parasuis<\/em>\u00a0infection leads to fever, lameness, dyspnea, and neurological signs, often accompanied by fibrinous polyserositis and arthritis. These lesions contribute to mortality and impaired performance.
\nWhile\u00a0G. parasuis<\/em>\u00a0is part of the normal upper respiratory flora, it behaves opportunistically, with disease frequently triggered by stress events such as weaning, transport, or mixing. Co-infections with PRRSV, SIV,\u00a0Mycoplasma hyopneumoniae<\/em>, or\u00a0Streptococcus suis<\/em>\u00a0further increase disease risk.
\nIncidence peaks around weaning, when piglets experience waning maternal immunity and heightened environmental or infectious stressors.<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n
\n
\n
\n
\n
<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n<\/div>

The diversity challenge<\/strong><\/h3><\/div>
\n
\n
\n
\n
\n
\n
A major challenge with\u00a0G.\u00a0parasuis<\/em>\u00a0is its genetic diversity. Numerous serotypes and non-typeable strains circulate in the field, with distributions that can shift over time. Genetic variability among isolates, particularly in capsular types and virulence-associated genes, limits cross-protection when field strains differ from vaccine components. In some cases,\u00a0more than one serotype or genetic variant can be present within the same herd or even within a single animal, further complicating diagnosis and prevention. Each production system tends to harbor its own local or regional strain profile, making the disease dynamics and outcomes highly site-specific.<\/strong><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n
\n
\n
\n
\n
<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n<\/div>

The diagnostic challenge<\/h2><\/h3><\/div>
\n
\n
\n
\n
\n
\n
\n

Sample smart:<\/strong><\/p>\n