Guinea

Malaria is present throughout Guinea year-round, with Plasmodium falciparum responsible for the great majority of infections and chloroquine resistance well established. The parasite destroys red blood cells, causing high fever, shaking chills, severe headache, nausea, and muscle pain, with potential to progress rapidly to life-threatening illness including cerebral malaria and severe anaemia if not treated promptly.

Antimalarial chemoprophylaxis is required for all travellers. A variety of options exist, each with different suitability based on individual health history. Malaria medication must be obtained in Australia before departure and taken in sufficient quantity for the entire trip. Any fever developing during travel in Guinea or within one year of returning home requires immediate medical assessment with full travel history disclosed to the treating clinician.

African trypanosomiasis, also known as sleeping sickness, is a parasitic infection spread through the bite of infected tsetse flies. These flies are found in parts of Guinea, particularly in rural and forested environments, meaning the risk is greatest for travellers spending time outside major cities or visiting remote natural areas.

Early illness may cause fever, headaches, fatigue, and swollen lymph nodes. Without treatment, the parasite can eventually affect the nervous system, leading to confusion, sleep disturbances, behavioural changes, and potentially life-threatening disease. There is no vaccine or preventive medication available for travellers.

Avoid tsetse fly bites by wearing long-sleeved and neutral-coloured clothing made from thicker fabric. Where possible, do not walk through dense vegetation, and take extra care when visiting wildlife areas or rural regions. Standard mosquito repellents are not considered reliable protection against tsetse flies.

Any traveller who develops unexplained fever or neurological symptoms after visiting rural Guinea should seek medical attention and disclose their travel history.

Guinea has experienced multiple Ebola and Marburg outbreaks. The situation should be monitored ahead of travel. The risk posed to travellers, outside outbreak periods is low.

Even during low risk periods, travellers should avoid contact with individuals who appear seriously ill with fever and unexplained bleeding, avoid all contact with bats and primates, and avoid consumption of bushmeat. Any fever with haemorrhagic symptoms developing during or after travel to Guinea requires immediate medical assessment with explicit disclosure of travel history.

Contaminated food and water are the primary sources of gastroenteritis and other gastrointestinal illness in Guinea, causing bacterial, viral, or parasitic infections. Symptoms may include diarrhoea, nausea, vomiting, and abdominal cramping, typically within one to three days of exposure.

The risk is elevated across the entire country, including in established hotel accommodation. Oral rehydration with commercially prepared solutions is the cornerstone of management for mild cases, and most episodes resolve within a few days. Medical attention should be sought promptly if symptoms are severe, persistent, contain blood, or are accompanied by fever, noting that medical infrastructure is significantly limited outside Conakry.

Dengue and Zika are mosquito-borne viral infections present in Guinea, transmitted mainly by Aedes mosquitoes that bite during daylight hours. Dengue typically causes a sudden fever, severe headache, marked muscle and joint aches, and fatigue, while a smaller number of infections can progress to more serious complications. Zika infection is often mild or without symptoms but can be a concern during pregnancy due to the risk of birth defects and other complications affecting the developing baby.

There are no specific antiviral treatments for either infection, so prevention relies on avoiding mosquito bites. Travellers should use insect repellent containing DEET or picaridin during the day, wear long sleeves and trousers where practical, and stay in accommodation with screened windows or air conditioning where available. Pregnant travellers or those planning pregnancy should seek specific advice from a travel doctor before visiting Guinea due to the potential risks associated with Zika.

Lassa fever is an acute viral illness endemic to West Africa, spread through contact with food or surfaces contaminated with the urine or droppings of the multimammate rat, a common rodent across Guinea. Lassa fever can also be spread through contact with the bodily fluids of an infected person, including through contact with objects contaminated with infected bodily fluids. Symptoms include fever, weakness, headache, and abdominal pain, and severe cases can result in haemorrhagic complications. No vaccine is available. Prevention relies on keeping food in sealed containers, avoiding contact with rodents and their droppings, and maintaining hygiene around accommodation. Any fever in the weeks following return from Guinea requires urgent medical evaluation with disclosure of travel history.

Freshwater exposure in Guinea can carry a risk of schistosomiasis (also known as bilharzia), a parasitic infection caused by microscopic worms that live in contaminated water. The parasite enters the body when larvae released by infected freshwater snails penetrate the skin during activities such as swimming, wading, bathing, or washing in rivers, lakes, and streams.

Guinea’s extensive waterways, including those found throughout the Fouta Djallon highlands, create potential exposure areas. There is currently no vaccine or medication that prevents infection before exposure, so avoiding contact with untreated freshwater is the most effective protection. Travellers who have accidentally been exposed should arrange testing after returning to Australia, as early diagnosis allows effective treatment before complications develop.

Tuberculosis (TB) is an airborne bacterial infection that spreads when a person with active disease releases bacteria through coughing, speaking, or singing. It most commonly affects the lungs and may cause a persistent cough, fever, night sweats, fatigue, and unexplained weight loss.

Guinea has a high burden of tuberculosis compared with Australia, with transmission occurring in both urban and rural communities. For most short-term travellers staying in standard tourist settings, the overall risk remains low. However, exposure is more likely for people spending extended periods in Guinea, working in healthcare or community settings, staying in crowded environments, or having prolonged close contact with local populations.

Travellers with higher-risk itineraries should discuss TB screening with a travel doctor before departure and after returning home. Anyone who develops ongoing respiratory symptoms, fever, night sweats, or unexplained weight loss following travel should seek medical advice and mention their time in Guinea.