Explaining the fever-after-travel rule and prophylaxis adherence — OSCE

Candidate instructions (8-minute station)

You are the paediatric registrar in the general paediatric clinic. A four-year-old boy is seen six weeks before a one-month visit to grandparents in rural Bangladesh. The family is visiting friends and relatives. You have prescribed atovaquone-proguanil and given the hepatitis A and typhoid vaccines. [4]

Your tasks are: [3]

1. Explain to the parents why the malaria tablets must be started before travel, taken every day while away, and continued for one week after return — and why stopping early is the commonest reason the tablets fail. [3]
2. Explain why the child still needs insect-bite avoidance even though he is taking prophylaxis, and how dengue differs from malaria in this respect. [4]
3. Give the fever-after-travel rule in plain language: what should bring the family straight to medical care after they return, and what they must tell the doctor. [3]

You are not expected to discuss antimalarial drug dosing in detail, to manage a febrile returned traveller, or to give a full pre-travel vaccine schedule. [4]

Examiner prompt to the actor (parent)

"My mother-in-law says the malaria tablets aren't necessary — she grew up in Bangladesh and never took them, and the children there don't either. If he's taking the tablets, why does he still need the mosquito spray? And when we come back, he'll be fine, won't he — he's a healthy boy?" [2]

Marking domains

• Adherence and accuracy (4): explains correctly that the tablets must be started before travel, taken daily throughout, and continued for one week after return to cover the incubating parasites; does not falsely reassure that the tablets make infection impossible; addresses the mother-in-law's belief respectfully by explaining non-immunity rather than dismissing it. [3]
• Bite avoidance and dengue (3): explains that the tablets reduce but do not abolish malaria risk, and that dengue has no tablet and no cure, so daytime mosquito avoidance protects against an infection the tablets cannot prevent. [4]
• Fever-after-travel rule and communication (3): states clearly that any fever within months of return must prompt urgent medical care, and that the family must state the destination (Bangladesh) so a malaria blood film is sent; uses plain language, acknowledges the family's confidence in the child's health without alarming them, and checks understanding. [1]

Model answer — the explanatory script

"Thank you for coming in today, and it's a good thing you're thinking about this six weeks before you travel — it gives us time to do this properly. I want to talk through three things: the malaria tablets, the mosquito protection, and what to do if your son gets a fever after you come back." [4]

"The tablets are called atovaquone-proguanil, and the most important thing about them is how you take them. He starts them a day or two before you fly, takes one every single day while you're in Bangladesh, and keeps taking them for a week after you get home. That week afterwards is the part most families miss — the parasites can still be incubating after you leave, and the tablets cover that window. The tablets are very good, but they only work if he takes every dose, because skipping days is the commonest reason they fail. I know your mother-in-law didn't take them growing up, and I understand why that makes you question whether he needs them — but the difference is that the children who grew up there built up some immunity from many early infections, whereas your son hasn't, so his body won't handle the parasite the way theirs did. For him, the tablets are genuinely protective." [3]

"The second thing is the mosquito protection, and this matters even with the tablets. The tablets cut the chance of malaria a great deal, but they don't make it zero — so the spray and the nets are a second layer. And there's another illness, dengue, carried by a mosquito that bites in the daytime, and there's no tablet and no cure for that — the only protection is not getting bitten. So the repellent, the long sleeves in the evening, and the bed net at night are protecting him against two different things at once." [4]

"The third thing is the most important, and I want you to remember it even if you forget everything else. When you come home, if your son gets a fever — any fever, within the next few months — I need you to take him to a doctor straight away and tell them he's been to Bangladesh. The reason is that malaria can still happen despite the tablets, and it's an illness that can turn serious quickly, but it's completely treatable if it's caught early. The doctor needs to know where he's been so they do the right blood test — a malaria film — the same day. Don't wait to see if the fever settles, and don't let anyone tell you it's 'just a virus' without knowing where he's travelled. You know him best, and if you're worried, that's reason enough to bring him in." [3] [1]

"He's a healthy boy, and that's very much in his favour — but healthy children can still catch these illnesses, which is exactly why we're doing all of this before you go. Is there anything you'd like me to go over again, or anything your mother-in-law would want to ask?" [2]