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Studii clinice propuse de SUA pentru vaccinuri la nou-născuți în Guinea-Bissau, criticate de OMS

16 Feb 2026
4 minute min
Cristina Preda

Un plan de a efectua un studiu cu vaccinuri împotriva hepatitei B pe mii de nou-născuți în Guinea-Bissau a fost criticat de Organizația Mondială a Sănătății (OMS) ca fiind "neetic". Conform bbc.com, studiul, finanțat de Centrele de Control al Bolilor din SUA, a fost suspendat după controverse.

👉 Detalii despre planul studiului și poziția OMS

Planul de studiu prevedea administrarea vaccinului la naștere pentru un grup de nou-născuți, în timp ce alt grup ar fi primit vaccinul întârziat până la vârsta de șase săptămâni. OMS a declarat că are "îngrijorări semnificative" în legătură cu studiul, descriind vaccinul la naștere ca "o intervenție esențială în sănătatea publică, cu un istoric dovedit". Departamentul de sănătate din SUA, condus de Robert F. Kennedy Jr., cunoscut pentru pozițiile sale critice față de vaccinuri, a încercat să folosească studiul pentru a răspunde unor întrebări despre efectele generale ale vaccinului.

OMS a subliniat că vaccinul împotriva hepatitei B a fost utilizat timp de mai bine de trei decenii în peste 115 țări, având un impact pozitiv asupra sănătății populațiilor. De asemenea, a declarat că administrarea intervenției salvatoare de viață pentru unii nou-născuți, dar nu pentru alții, îi expune pe aceștia la "daune potențial ireversibile". O proporție semnificativă a populației din Guinea-Bissau este estimată a avea hepatita B, iar OMS afirmă că vaccinarea la naștere împiedică transmiterea virusului de la mamă la copil în 70-95% din cazuri.

👉 Reacțiile locale și situația epidemiologică în Guinea-Bissau

Criticii au întrebat de ce nou-născuții din această țară africană sunt propuși pentru astfel de studii. Luna trecută, guvernul din Guinea-Bissau a suspendat proiectul în urma indignării publice. Magda Robalo, fostul ministru al sănătății din Guinea-Bissau, a declarat că "nu este acceptabil și nu ar trebui să continue", adăugând că "guinea-bissauanii nu sunt cobai".

Conform OMS, 12% din populația adultă a țării are hepatită B cronică, iar studiile mai mici sugerează că proporția ar putea ajunge la unu din cinci. De obicei, persoanele infectate nu prezintă simptome sau au simptome foarte ușoare. Cu toate acestea, unele persoane pot experimenta icter, urină întunecată, oboseală severă, greață, vărsături și dureri abdominale. OMS afirmă că pacienții cronici prezintă un risc înalt de ciroză și cancer hepatic.

#studii clinice #OMS #Robert F. Kennedy Jr. #Guinea-Bissau #vaccin hepatitis B
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