This time of year I usually have stopped taking Echinacea, but it is my first port of call to build up my defences and if you can get Echinacea tincture that is the most effective in my opinion. Boots produce their own and there is an excellent one made by Bioforce from helath stores. Take it daily for three weeks then a week off.

2 Next increase the amount of vitamin C you are taking, at least 1 gram a day in two 500mg doses is the most effective. Have as natural and unprocessed diet as you can, and juicing your fruit and vegetables gets you the maximum vitamins from them.

3 Your body requires oxygen for every cell to function properly because viruses can neither survive nor thrive in it. Therefore, the best defence against microbes, germs, harmful bacteria and viruses, such as the swine influenza virus, is to keep the body oxygenated. Add in eggs to your diet as they are excellent for improving your oxygen absorption. See the healthy bites item on eggs below.

4 Are you breathing deeply enough? Shallow breathing will not bring enough oxygen into so your system, and being out in the fresh air every day is a must. Walking at a moderate pace while breathing in for a count of six, and out for a count of six, is one of the simplest ways to do this. If you find a count of six difficult, reduce it to four, or if it becomes easy increase to six or eight.

5 Limit foods and substances that stress the body such as sugar, caffeine, alcohol, smoking, too much red meat and processed foods high in saturated and hydrogenated fats.

6 Increase your intake of green tea, and reduce coffee and tea. Green tea will really help as its antixodants will boost your immune system. Add some lemon to it and you get extra vitamin C as well.

7 Finally, go back to basic hygiene and wash your hands in hot soapy water frequently and carry hand gel when you are out and use it after contact with others such as a handshake – and contact in public places with stair rails, lift buttons and so on.

It may all seem like a nonsense, but people have died from not taking this seriously. The good habits outlined here will help protect you, and if you maintain them you will have a solid barrier to prevent future infection.