People who are concerned that they might have HIV will soon be able to find out whether or not they are infected in the comfort of their own homes, officials are to announce.
At present it is illegal in the UK to do a HIV test at home and read the result yourself - people can take a sample themselves, send it off for testing in a laboratory and receive the result at a later date.
But officials are planning to change the outdated laws so people can perform a simple saliva test at home which will quickly give the user a "negative" or a "positive indication" result.
Health experts hope that making the tests more readily available will help reduce infection rates.
Dr Stephen Morton, head of the multi-agency Outbreak Control Team, has said the public need take no action over the findings:
This outbreak was fortunately short lived but it was important to see if we could find the source. Our findings suggest that eating mixed leaf bagged salad was the most likely cause of illness.
It is however often difficult to identify the source of short lived outbreaks of this type as by the time that the outbreak can be investigated, the affected food and much of the microbiological evidence may no longer be available ...
There is no specific action for the public to take but we hope the investigations ... will help to prevent further outbreaks of this type from happening again.
Our thoughts are with the family at this sad time. We have been working with Environmental Health Officers at Havering Council to identify the cause of illness and any links to food eaten at the venue.
The venue has been cooperating fully with our investigations.
Clostridium perfringens bacteria are the third most common cause of food poisoning in the UK and this mostly occurs in relation to red meat or poultry.
Indications suggest that this outbreak is an isolated event.
People become unwell on average after about 12 hours of eating food contaminated with Clostridium perfringens, with diarrhoea and abdominal pain being the main symptoms.
The illness generally lasts no more than a few days although vulnerable groups such as very young children, elderly people, and those with underlying health problems can be more seriously affected.
It is rare for a person to die as a direct result of food poisoning.
People who become unwell with symptoms of food poisoning are advised to drink plenty of fluids and take rest at home.
If symptoms are particularly severe or do not settle within two days then they should seek medical advice.
– Dr Deborah Turbitt, director of the Health Protection Agency’s local Health Protection Unit
Professor David Salisbury, director of immunisation at the Department of Health, said:
Whooping cough is highly contagious and infants are particularly vulnerable. Thirteen infants have died as a result of whooping cough this year and there have been nearly 400 cases of the disease in children under three months old. It's vital that babies are protected from the day they are born - that's why we are encouraging all pregnant women to be vaccinated.
Health officials recently announced that all pregnant women will be vaccinated against whooping cough in an attempt to combat the infection and protect newborns.
Responding to last month's figures on the outbreak, Dr Gayatri Amirthalingam, consultant epidemiologist for immunisation at the HPA, said:
The October figures show a continuing rise in the overall number of whooping cough cases. While there has been a decline in the number of infant cases it's important to emphasise that it's too early to see any impact from the pregnancy vaccination programme. Working with the Department of Health, we are continuing to carefully monitor whooping cough activity to evaluate the success of the programme.