Choose hard or pasteurised cheese instead. Avoid cod liver oil. Avoid pate and raw, undercooked or reheated meat, poultry or fish. Liver is best avoided or at least kept to a maximum of once a week. Check 'sell by' and 'best before' dates on all food and drink.
Food hygiene is especially important during pregnancy.
Wash your hands thoroughly after handling raw meat. Always wash your hands after handling animals. If possible, avoid changing cat litters yourself. Otherwise, wear gloves. Wash all fruit, vegetables and salads carefully.