| TTP | Thrombotic Thrombocytopenic Purpura | In English | → Blood and circulatory system |
| TVP | Thrombose Veineuse Profonde | In French | → Blood and circulatory system |
| UC | Ulcerative Colitis | In English | |
| UHCW | Unquy hark'aypa chaskisqa waqlliynin = AIDS | Acquired Immune Deficiency Syndrome | In English = SIDA | Syndrome d'Immuno-Déficience Acquise | In French = VIGS | Verworwe Immuniteitsgebreksindroom | In Afrikaans = SIDA | Síndrome de Inmuno-Deficiencia Adquirida | In Occitan = SIDA | Sindromo di Imuno-Defekteso Aquirita | In Ido = AIDS | Akirita Imuno-Deficita Simptomaro | In Esperanto = SIDA | Sindrome d'inmunodefizienzia aquirita | In Aragonese = СПИН | Синдром на придобитата имунна недостатъчност | In Bulgarian = QİÇS | Qazanılmış İmmun Çatışmazlığı Sindromu | In Azerbaijani = SIDA | Síndrome d'Immunodeficiència Adquirida | In Catalan = HIES | Hartutako Immuno Eskasiaren Sindromea | In Basque = SIDA | Síndrome de Inmunodeficiencia Adquirida | In Spanish = SEIF | Siondróm Easpa Imdhíonachta Faighte | In Irish = AIDS | Annlochd Inneamh Dìon-Slàinte | In Scottish Gaelic = ՁԻԱՀ | Ձեռքբերովի Իմունային Անբավարվածության Համախտանիշ | In Armenian = SCDI | Syndromis Comparatis Defectu Immunitatis | In Latin = 에이즈 | 후천성 면역 결핍 증후군 | In Korean = შიდსი | შეძენილი იმუნური დეფიციტის სინდრომი | In Georgian = СИДА | Синдромот на стекнат имунолошки дефицит | In Macedonian = СИДА | синдром стеченог имунолошког дефицита | In Serbian = AIDS | Akvirírani imúnski deficítni sindróm | In Slovenian = СПИД | Синдром приобретённого иммунного дефицита | In Russian = SIDA | Sindromul Imunodeficienţei Autodobândite | In Romanian = SIDA | Síndrome da imunodeficiência adquirida | In Portuguese = AIDS | Hội chứng Suy giảm Miễn dịch Mắc phải | In Vietnamese = СНІД | Cиндром набутого імунодефіциту | In Ukrainian = AIDS | Alınğan İmmun Defisit Síndromı | In Tatar = UKIMWI | Upungufu wa Kinga Mwilini | In Swahili |
In Quechua | → Immunology and allergy → Infectious diseases |
| UIV | Urographie intraveineuse | In French | → Diagnostics |
| UKG | Ultraschallkardiographie | In German | → Diagnostics → Cardiology |
| UKIMWI | Upungufu wa Kinga Mwilini = UHCW, AIDS, SIDA, VIGS, СПИН, QİÇS, HIES, SEIF, ՁԻԱՀ, SCDI, 에이즈, შიდსი, СИДА, СПИД, СНІД (look above) |
In Swahili | → Immunology and allergy → Infectious diseases |
| USAMRIID | United States Army Medical Research Institute of Infectious Diseases | In English | → Military affairs → Infectious diseases |
| UTI | Urinary Tract Infection | In English | → Urology |
| VAP | Ventilation-Associated Pneumonia | In English | → Chest diseases |
| VCUG | Voiding Cysto-Urethrogram | In English | → Diagnostics → Urology |
| VDCC | Voltage-dependant calcium channel | In English | → Neurology |
| VIDH | Virus Immunitarii Defectus Humanae = VIH | Virus de l'Immunodéficience Humaine | In French = HIV | Human Immunodeficiency Virus | In English = VIH | Virus d'Inmunodeficencia Humana | In Asturian = VIH | Vírus da imunodeficiência humana | In Portuguese = ŽIV | Žmogaus Imunodeficito Virusas | In Lithuanian = ХИВ | Хумане имунодефицијенције | In Serbian = MIV | Menslike Immuniteitsgebreksvirus | In Afrikaans = HIV | Humani Imunodeficientni Virus | In Slovenian = ВИЧ | Вирус иммунодефицита человека | In Russian = GIB | Giza Immunoeskasiaren Birusa | In Basque |
In Latin | → Virology → Immunology and allergy → Infectious diseases |
| VIDO | Vaccine and Infectious Disease Organization | In English | → Organizations and associations → Immunology and allergy → Infectious diseases |
| VIGS | Verworwe Immuniteitsgebreksindroom = UHCW, AIDS, SIDA, СПИН, QİÇS, HIES, SEIF, ՁԻԱՀ, SCDI, 에이즈, შიდსი, СИДА, СПИД, СНІД, UKIMWI (look above) |
In Afrikaans | → Immunology and allergy → Infectious diseases |
| VIH | Virus de l'Immunodéficience Humaine = VIDH, HIV, ŽIV, ХИВ, MIV, ВИЧ, GIB (look above) |
In French | → Virology → Immunology and allergy → Infectious diseases |
| VIH | Vírus da imunodeficiência humana = VIDH, HIV, ŽIV, ХИВ, MIV, ВИЧ, GIB (look above) |
In Portuguese | → Virology → Immunology and allergy → Infectious diseases |
| VIH | Virus d'Inmunodeficencia Humana = VIDH, HIV, ŽIV, ХИВ, MIV, ВИЧ, GIB (look above) |
In Asturian | → Virology → Immunology and allergy → Infectious diseases |
| vMCJ | Variant de la Maladie de Creutzfeldt-Jakob | In French | → Neurology |
| VRS | Virus Respiratoire Syncytial = RSV | Respiratory Syncytial Virus | In English |
In French | → Virology |
| VRSH | Virus Respiratoire Syncytial Humain | In French | → Virology → Infectious diseases |
| VTEC | Verotoxin-Producing Escherichia Coli | In English | → Biological sciences |
| WAIMH | World Association of Infant Mental Health | In English | → Associations → Pediatry → Neurology |
| WCMH | World Congress on Men's Health & Gender | In English | → Congresses → Sexual problems → Urology |
| WER | Weekly Epidemiological Report | In English | → Serial publications, periodicals → Infectious diseases |
| WFH | World Federation of Hemophilia | In English | → Organizations and associations |
| WFSBP | World Federation of Societies of Biological Psychiatry | In English | → Organizations and associations → Psychiatry |
| WNV | West Nile Virus | In English | → Virology |
| WPA | World Psychiatric Association | In English | → Associations → Psychiatry |
| WVSD | Wetenschappelijke Vereniging Voor Seksuele Disfuncties | In Dutch | → Organizations and associations → Sexual problems → Urology |
| ŽIV | Žmogaus Imunodeficito Virusas = VIDH, VIH, HIV, ХИВ, MIV, ВИЧ, GIB (look above) |
In Lithuanian | → Virology → Immunology and allergy → Infectious diseases |
| АГ | Артериальная гипертензия = HTA | Hypertension artérielle | In French |
In Russian | → Physiology |
| ВИЧ | Вирус иммунодефицита человека = VIDH, VIH, HIV, ŽIV, ХИВ, MIV, GIB (look above) |
In Russian | → Virology → Immunology and allergy → Infectious diseases |
| СИДА | синдром стеченог имунолошког дефицита = UHCW, AIDS, SIDA, VIGS, СПИН, QİÇS, HIES, SEIF, ՁԻԱՀ, SCDI, 에이즈, შიდსი, СПИД, СНІД, UKIMWI (look above) |
In Serbian | → Immunology and allergy → Infectious diseases |
| СИДА | Синдромот на стекнат имунолошки дефицит = UHCW, AIDS, SIDA, VIGS, СПИН, QİÇS, HIES, SEIF, ՁԻԱՀ, SCDI, 에이즈, შიდსი, СПИД, СНІД, UKIMWI (look above) |
In Macedonian | → Immunology and allergy → Infectious diseases |
| СНІД | Cиндром набутого імунодефіциту = UHCW, AIDS, SIDA, VIGS, СПИН, QİÇS, HIES, SEIF, ՁԻԱՀ, SCDI, 에이즈, შიდსი, СИДА, СПИД, UKIMWI (look above) |
In Ukrainian | → Immunology and allergy → Infectious diseases |
| СПИД | Синдром приобретённого иммунного дефицита = UHCW, AIDS, SIDA, VIGS, СПИН, QİÇS, HIES, SEIF, ՁԻԱՀ, SCDI, 에이즈, შიდსი, СИДА, СНІД, UKIMWI (look above) |
In Russian | → Immunology and allergy → Infectious diseases |
| СПИН | Синдром на придобитата имунна недостатъчност = UHCW, AIDS, SIDA, VIGS, QİÇS, HIES, SEIF, ՁԻԱՀ, SCDI, 에이즈, შიდსი, СИДА, СПИД, СНІД, UKIMWI (look above) |
In Bulgarian | → Immunology and allergy → Infectious diseases |
| ХИВ | Хумане имунодефицијенције = VIDH, VIH, HIV, ŽIV, MIV, ВИЧ, GIB (look above) |
In Serbian | → Virology → Immunology and allergy → Infectious diseases |
| ХУС | Хемолитички уремијски синдром = HUS | Hemolytic Uremic Syndrome | In English = SUH | Síndrome Urémico Hemolítico | In Spanish = SHU | Syndrome Hémolytique et Urémique | In French = HUS | Hämolytisch-urämisches Syndrom | In German = HUS | Hemolytisk uremisk syndrom | In Nynorsk = HUS | Hemolytisk-uremisk syndrom | In Norwegian = HÜS | Hemolitik üremik sendrom | In Turkish |
In Serbian | → Blood and circulatory system |
| ՁԻԱՀ | Ձեռքբերովի Իմունային Անբավարվածության Համախտանիշ = UHCW, AIDS, SIDA, VIGS, СПИН, QİÇS, HIES, SEIF, SCDI, 에이즈, შიდსი, СИДА, СПИД, СНІД, UKIMWI (look above) |
In Armenian | → Immunology and allergy → Infectious diseases |
| შიდსი | შეძენილი იმუნური დეფიციტის სინდრომი = UHCW, AIDS, SIDA, VIGS, СПИН, QİÇS, HIES, SEIF, ՁԻԱՀ, SCDI, 에이즈, СИДА, СПИД, СНІД, UKIMWI (look above) |
In Georgian | → Immunology and allergy → Infectious diseases |
| 에이즈 | 후천성 면역 결핍 증후군 = UHCW, AIDS, SIDA, VIGS, СПИН, QİÇS, HIES, SEIF, ՁԻԱՀ, SCDI, შიდსი, СИДА, СПИД, СНІД, UKIMWI (look above) |
In Korean | → Immunology and allergy → Infectious diseases |
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