Haemophilus somnus

Disease Overview

This is a respiratory disease in cattle, and can lead to infections in other organs.

Merck Animal Health Solutions

For Haemophilus somnus

NUFLOR (florfenicol) is an injectable antibiotic indicated for treatment of bovine respiratory disease (BRD) (with Mannheimia haemolytica, Pasteurella multocida, and Histophilus somni), bovine interdigital phlegmon (with Fusobacterium necrophorum and Bacteroides melaninogenicus) in cattle.

RESFLOR GOLD (florfenicol and flunixin meglumine) is a simple bovine respiratory disease (BRD) treatment strategy. It involves a combination of two therapies in one dose: the powerful antibiotic florfenicol to kill or inhibit the disease-causing bacteria Mannheimia haemolytica, Pasteurella multocida, Histophilus somni, and Mycoplasma bovis; and, the fast-acting non-steroidal anti-inflammatory drug (NSAID) flunixin meglumine to reduce BRD-associated fever.

Shown to be effective for the vaccination of healthy cattle against disease caused by Clostridium chauvoei (Blackleg), Cl. septicum (Malignant edema), Cl. novyi (Black disease), Cl. sordellii, Cl. perfringens Types C and D (Enterotoxemia), and Histophilus somni.

Shown to be effective for the vaccination of healthy cattle against disease caused by Clostridium chauvoei, Cl. septicum, Cl. haemolyticum, Cl. novyi, Cl. sordellii, Cl. perfringens Type C and D, and Histophilus somni.

Clinical Signs

  • Fever
  • Severe depression
  • Weakness
  • Blindness
  • Coma