These can include ear infections, vomiting and diarrhoea, pneumonia, meningitis and serious eye disorders.
Symptoms include mild headaches, muscle pain, fever, a persistent cough and sometimes vomiting and diarrhoea.
She said anyone with symptoms of norovirus, such as vomiting and diarrhoea, should not visit any healthcare buildings.
Cases of the vomiting and diarrhoea bug have been identified at Poole Hospital.
The measures were brought in to help control the spread of the norovirus bug which causes vomiting and diarrhoea.
The side effects may be more difficult to handle than the anxiety disorder, they can include vomiting and diarrhoea.
Health officials said diners at Copenhagen's Noma restaurant fell sick over a five-day period in February, suffering from vomiting and diarrhoea.
You can really help us and our patients by not visiting if you, yourself, are feeling unwell and have vomiting and diarrhoea.
BBC: Ninewells Hospital closes another ward over norovirus bug
Bosses at NHS Tayside said the ward had been closed to new admissions because several patients were suffering from vomiting and diarrhoea.
BBC: Ninewells Hospital closes another ward over norovirus bug
Nausea followed by vomiting and diarrhoea are the main symptoms of norovirus.
BBC: 'One in five' struck by norovirus in Scotland, say experts
It claims to have received over 600 complaints from consumers who said they had suffered reactions including vomiting and diarrhoea after eating the product.
Severe cases could see vomiting and diarrhoea or develop into pneumonia.
The Health Protection Agency's (HPA) Thames Valley Health Protection Unit has been working with the Royal Borough of Windsor and Maidenhead's environmental health department to investigate the outbreak of vomiting and diarrhoea.
People with HIV often remain asymptomatic for years, and conventional wisdom is that treating such people brings little clinical benefit while exposing them to unpleasant side effects such as nausea, vomiting and diarrhoea.
The main symptoms of the norovirus infection are sudden nausea, stomach ache followed by severe 'projectile' vomiting and or diarrhoea.
The symptoms, including vomiting, diarrhoea and nausea, come on suddenly and last between 12 to 60 hours.
Many E.coli strains are harmless, but the more serious ones can cause serious illness, including vomiting, diarrhoea and, in severe cases, intestinal bleeding.
To wait at least 48 hours if they have experienced symptoms of vomiting or diarrhoea and no more than two visitors should be at a patient's bedside at any one time.
Symptoms include severe vomiting, diarrhoea and fever.
BBC: Parvovirus: Fatal dog virus spread 'may be due to cost'
The symptoms include vomiting, diarrhoea and nausea.
BBC: Third of patients at Liberton Hospital struck by norovirus
Ms Knowles told the jury she experienced stomach cramps and had bouts of dizziness, diarrhoea and vomiting after drinking her coffee, but the court heard she did not suffer any long-term damage.
"I would ask that anyone who was staying at the campsite... and who has been experiencing symptoms of diarrhoea and vomiting, abdominal pain or cramps, to contact their local general practitioner for advice, " said Dr Wrench.
Health experts are warning of an unusually severe winter outbreak of the norovirus diarrhoea and vomiting bug.
It was the second bout of the diarrhoea and vomiting bug in successive voyages on the ship, which carries up to 1, 843 passengers.
Eight wards remain closed at a hospital in Renfrewshire following the deaths of four patients who were being treated for a diarrhoea and vomiting bug.
All babies born in Scotland from May are to be offered a vaccination to protect them from a bug which causes severe diarrhoea and vomiting.
From July, all babies aged between two and four months will be offered a two-dose oral vaccine against the rotavirus, a highly infectious diarrhoea and vomiting bug.
The information will be fed to experts at Southampton University, who will map all the reports of diarrhoea and vomiting that occur each day in the Wessex area.
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