Chikungunya
This viral infection occurs in some tropical and subtropical regions of the world, predominantly transmitted through the bite of an infected Aedes mosquito
Cholera
Cholera is an acute diarrhoeal disease usually associated with poverty, poor sanitation and inadequate access to clean drinking water
Dengue
Dengue is an infection caused by the dengue virus of which there are four different subtypes. The disease is transmitted by mosquitoes
Hepatitis A
Hepatitis A may occur without symptoms or may result in a mild illness lasting a few weeks; however, the disease tends to become more severe with advancing age
Hepatitis B
The hepatitis B virus is one of the most prevalent blood-borne viruses worldwide and is a major cause of chronic liver disease and liver cancer
Influenza (flu)
Influenza is a highly infectious, viral infection of the lungs and airways
Japanese encephalitis
Japanese encephalitis is transmitted to humans in predominantly rural parts of Asia and the Western Pacific especially where rice growing and pig farming are common
Malaria
Malaria is a serious and potentially life-threatening disease, transmitted to humans through the bite of infected female Anopheles spp. mosquitoes
Meningococcal disease
Meningococcal disease is a rare, but potentially devastating infection in travellers caused by the bacteria Neisseria meningitidis
Pertussis (whooping cough) and travel
Information about pertussis and the UK vaccination regime
Poliomyelitis
Poliomyelitis (polio) is a potentially paralysing viral infection that only occurs in humans
Rabies
Rabies occurs in warm-blooded mammals and is transmitted to humans, most often by a bite or scratch from an infected animal, usually a dog
Schistosomiasis
A parasitic disease most common in tropical regions, especially Africa, Schistosomiasis infection occurs through direct contact with contaminated water
Sexually transmitted infections
New sexual partnerships and unprotected intercourse is relatively common amongst travellers. Read about some of the risks to consider
Tick-borne encephalitis
Tick-borne encephalitis is a viral infection which can cause a range of symptoms from a mild and short-lived febrile illness to a severe infection of the central nervous system
Travellers' diarrhoea
Following advice on food and water hygiene is sensible, but travellers should always be prepared to manage the symptoms of travellers' diarrhoea
Typhoid and paratyphoid
Typhoid and paratyphoid (also known as enteric fevers) are infections acquired by the ingestion of food or water contaminated by Salmonella Typhi and Salmonella Paratyphi A, B or C
Viral haemorrhagic fever
Viral haemorrhagic fevers (VHFs), with the exception of dengue, are very rare in UK travellers. They can cause a range of symptoms from a relatively mild illness, to severe, life-threatening disease
West Nile virus
West Nile virus (WNV) is spread to humans by mosquitoes and is found on every continent except Antarctica
Yellow fever
Yellow fever is caused by a virus, which circulates between infected monkeys or humans and mosquitoes
