Hi My wife has blood infection through food, How...

How did your wife got infected ?
through conteminated food , like processed food and canned food , as well as fastfood 
- weak immune system may increase incidence of this medical condition 
What does infection means in this case ?
usually the infection starts in digestive system such as abdominal infection 
What is the treatment options in this case ?
- antibiotics including : 
1. clarithromycin
2. metronidazole
3. amoxicillin
- medication to relieve symptoms 
1. nadine : to relieve nausea and vomiting 
2. omeprazole : to reduce stomach acidity 
General advices :
1. please consult your doctor before taking any medication
2. rehydrate your self always by drinking plenty of water 
3. consult your doctor after 14 days of medication course or appearance of new serious symptoms