Can a bad translation cost lives? The short answer is yes. In today’s globalised world, where health information crosses borders in seconds, poorly translated awareness campaigns can be as dangerous as a bad prescription. In 2012, a hospital in Florida faced a multi-million-dollar lawsuit after an interpreting error led to a brain haemorrhage being misdiagnosed as “alcohol intoxication”, delaying treatment for a Spanish-speaking patient. This is just one example of how language can become a lethal barrier if it is not handled properly.

Every year, millions of people receive health information they do not fully understand. According to a study by the World Health Organization (WHO), around 50% of patients do not understand the health instructions they are given, especially when these are not in their mother tongue. Despite global efforts to promote inclusive campaigns, language remains an underestimated barrier, particularly in multicultural and multilingual settings such as hospitals, community health centres and prevention programmes.

Beyond language, the challenge lies in conveying the cultural and emotional nuances of health messages. Translating “get tested” is not the same in English as in Swahili, and it does not carry the same emotional weight across cultures. That is why it is crucial to develop translation strategies that not only respect the language but adapt the message with cultural sensitivity, scientific accuracy and communicative clarity.

Understanding the real purpose of the health campaign

Before translating a campaign it is vital to understand its original aim: is it about preventing disease? Promoting healthy habits? Providing information about emerging risks? A good translation begins long before the linguistic work: it begins with an understanding of the core message and the social context in which it will be used.

Key questions to consider:

• How urgent is the message?
• Who is the target audience (children, older adults, migrant communities, etc.)?
• Which channels will be used to distribute it (posters, social media, videos, community talks)?

This preliminary analysis makes it possible to adjust not only the words but also the tone, style and emotional charge of the message.

Key principles for effective health translation

For an awareness campaign to succeed internationally, a number of basic principles have to be applied to ensure the message loses neither its accuracy nor its impact.

Principle	Description
Clarity	Use simple sentences and avoid unnecessary technical language.
Culturally appropriate	Adapt cultural references, images and symbols.
Balanced literalness	Do not translate word for word; keep the meaning and the intention.
Linguistic testing	Validate the text with native speakers of the target language.
Terminological consistency	Use medical glossaries and standardised resources.

It is also always advisable to use translators who specialise in public health or medicine, and to avoid automated tools without human oversight.

The kinds of adaptation needed: far more than translating words

Translating health campaigns is not simply a matter of moving text from one language to another. It is a process of adaptation that has to take in different levels of adjustment so that the message keeps its force, clarity and cultural sensitivity.

1. Linguistic adaptation

This goes beyond literal translation. It means using understandable language, free of unnecessary technical terms and matched to the educational level of the audience. For example, instead of “cardiovascular disease”, “heart problems” may work better in certain community settings.

2. Cultural adaptation

This means taking account of the social norms, taboos, values and beliefs of the target group. A campaign on HIV prevention, for instance, may call for a completely different approach if it addresses young people in urban areas than if it is launched in rural communities with a strong religious influence.

3. Visual and symbolic adaptation

Colours, gestures, images and symbols also communicate. A leaflet with illustrations of people who do not reflect the diversity of the target audience can generate rejection or disengagement. Even warning icons have to be culturally interpretable so as not to cause confusion or unnecessary fear.

Together, these levels of adaptation allow the campaign to feel authentic and relevant to its audience, which is essential for building trust, understanding and action.

Translation or localisation? The difference that determines impact

Many organisations confuse translation with localisation, but in health campaigns that difference is critical.

Concept	Translation	Localisation
Approach	Literal conversion from one language to another	Full cultural, linguistic and contextual adaptation
Level of depth	Basic	Advanced
Example	“Lávese las manos” → “Wash your hands”	In Japan, also including images of washing the forearms
Application	Technical documents, forms	Multimedia campaigns, videos, social media posts

For awareness campaigns, the preferred option should always be localisation, as it focuses on the end user in their real context.

Common barriers in translating health campaigns

Translating awareness campaigns is not without its challenges. Recognising them is the first step towards addressing them properly.

Barrier	Description and consequences
Excessive technical language	Using medical terms without explanation can alienate non-specialist audiences.
False friends	Words that sound similar in another language but mean different things (for example, “constipated” in English does not mean “constipado”, a cold, in Spanish).
Unchecked machine translation	Using tools such as Google Translate without human review can produce serious errors.
Lack of sociocultural context	A literal translation can misread local values, taboos or customs.
Not knowing the literacy level	Information can be poorly pitched if the reading level of the target audience is not taken into account.

Tools and strategies for successful multilingual campaigns

Here is a list of practical strategies to apply in real projects:

• Carry out an intercultural analysis of the target audience.
• Involve community leaders in validating the message.
• Hire translators with experience in public health.
• Develop multichannel materials (text, video, audio) for different literacy levels.
• Use inclusive, accessible language.
• Test the content with small community groups before the official launch.
• Take sign language or alternative systems into account when working with people with disabilities.

Translation with a purpose: how to save lives with words

Translating awareness campaigns in healthcare is neither a luxury nor an optional extra: it is a critical public health tool. Translating well can mean vaccinating more people, detecting a disease earlier or reducing the stigma that prevents people from seeking an early diagnosis.

More than a linguistic act, effective health translation is a bridge between science and the community, between knowledge and action. In a world marked by diversity, the responsibility to communicate health clearly, accurately and in a culturally adapted way is an ethical imperative.

Let us remember that every word counts. And in health, a single word can be the difference between prevention and crisis. Translating responsibly and with cultural awareness not only makes campaigns more effective but also honours the dignity of every individual they address. Because at the end of the day, health has to be communicated too.

See also our other articles on related topics:

• Learn the 20 most common medical abbreviations in English: an essential guide for healthcare professionals

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