Streptococcal Meningitis in Pigs: Welfare Emergency

Streptococcal meningitis causes sudden neurological signs and death in weaner pigs. This guide covers welfare recognition and management.

Key Facts

Streptococcus suis is the primary cause of bacterial meningitis in pigs
Weaners of 3-12 weeks are most commonly affected
Signs include sudden onset paddling, seizures, lateral recumbency, and death
Affected pigs require immediate treatment to have any chance of survival
Some pigs develop permanent neurological deficits despite treatment
S. suis is a significant zoonosis requiring farm worker protection

Welfare Considerations and Management

Welfare-centred streptococcal meningitis management requires immediate action. Affected pigs should be treated within hours of sign onset for best outcomes. High-dose penicillin is the treatment of choice. Anti-inflammatories reduce brain inflammation. Nursing care including padded, separated pens reduces injury risk during seizures. Prevention through vaccination (where available), good hygiene at weaning, and minimising mixing stress reduces incidence. Farm workers handling affected pigs must use appropriate PPE.

What You Can Do

Recognise meningitis signs early and treat affected pigs immediately
Use high-dose penicillin and anti-inflammatories as directed by your vet
Provide padded, separated pens to prevent injury during seizures
Wear appropriate PPE when handling affected pigs — S. suis can infect humans