Dra Leda Guzzi

Médica Infectologa
Miembro de la Sociedad Argentina de Infectologia
Miembro de la International AIDS Society
Asistencia, docencia e investigación

[IAC - the International AIDS Conference @AIDS_conference]

"Don't ever allow anyone to silence you because you are a woman, or because English is not your first language... Nothing about us without us remains as urgent as ever." - #AIDS2026 Co-Chair Claudia Cortes 🇨🇱 #RethinkRebuildRise

[Nora Bär @norabar]

😢Se fueron dos figuras sobresalientes de la ciencia local: internacionalmente reconocidos, brillantes, comprometidos y generosos. Hicieron escuela y dejan un legado imborrable para las generaciones que los siguen👇
https://t.co/zl1tLRtU6g

[Vélez Sarsfield @Velez]

Soy del equipo de mi viejo.

¡FELIZ DÍA, PAPÁ! 💙

[Dra Leda Guzzi @LedaDra]

@rquiroga777 Sos lo más Rodri!!

[Dra Leda Guzzi @LedaDra]

@rquiroga777 Felicitaciones Rodrigo!! Vos y tu enorme laburo son un orgullo!!

[Daniel Schteingart @danyscht]

Dramática la caída de la vacunación infantil en muchos países de Latam. Lo de Argentina es terrible

[World Health Organization (WHO) @WHO]

Too many young lives are being lost to preventable causes.

As risks shift in adolescence (aged 15–19), self-harm is the leading cause of death among girls, and road traffic injuries among boys.

Invest in mental health support and safer roads to protect young lives. Learn more 🔗 https://t.co/vdrNsP6sGo

[Dra Leda Guzzi @LedaDra]

La mejor noticia !!!! Brasil logró eliminar la transmisión vertical del VIH (de madre a hijo). Orgullo total!!! Felicitaciones!!!

[Lula @LulaOficial]

É um orgulho imenso para o Brasil e para o SUS sermos o primeiro país da América do Sul, e o maior do mundo, a eliminar a transmissão do HIV de mãe para filho.

Essa conquista prova que, com diagnóstico no tempo certo, tratamento adequado e acesso à saúde materna e a um parto seguro, é possível salvar vidas e garantir um futuro melhor para nossas crianças. O SUS mostra, mais uma vez, a sua força e o seu compromisso com a vida.

Quero agradecer ao @drauziovarella, referência histórica na informação, conscientização e combate ao HIV, e ao @DrTedros pelo reconhecimento e pelas palavras de incentivo ao Brasil.

O mundo olha para o SUS e vê que cuidar das pessoas faz toda a diferença.

🎥 Audiovisual/PR

[Pablo Yedlin @pyedlin]

Gracias a @LANACION por publicar este resumen de un año complejo para la salud pública en Argentina. https://t.co/cyazsC5LWr

[Oscar Arias @OACerebro]

Médicos entre el lujo y la asfixia @TheEconomist

En la vasta ecología humana contemporánea ―esa que avanza entre bytes, bisturíes y burocracias― los médicos ocupan un nicho paradójico. En Estados Unidos, aparecen como organismos privilegiados: pululan en el estrato más alto de la pirámide de ingresos, viven rodeados de tecnologías brillantes y consultorios que parecen cápsulas espaciales. Y aun así, muchos de ellos se encuentran al borde de la autointoxicación emocional, como si respiraran un aire saturado de estrés y desilusión.

Es un fenómeno digno de estudio evolutivo: profesionales adaptados para salvar vidas, pero poco preparados para sobrevivir a su propio sistema.

La nota de The Economist lo dijo sin rodeos: los médicos estadounidenses son ricos… y profundamente miserables. La paradoja recuerda a esas especies que, después de alcanzar su nicho ecológico ideal, mueren por la presión interna de sus propios mecanismos biológicos. La remuneración es alta, sí, pero viene acompañada de jornadas interminables, un ecosistema regulatorio sofocante y un laberinto administrativo que compite en densidad con el ADN empaquetado en un cromosoma humano.

No es que los médicos estadounidenses ganen bien: es que ganan muy bien. Pero sus días son una cadena interminable de microagonías burocráticas, una coreografía de seguros, autorizaciones, demandas potenciales y métricas de eficiencia que reducen la empatía a un código CPT.

Es como si hubieran cruzado de golpe el umbral entre la medicina y la mecanización: curan, pero no necesariamente viven.

Si cruzamos la frontera hacia México y América Latina, la narrativa no es menos compleja, pero sí más brutal. Aquí nuestros médicos no enfrentan el vértigo de la abundancia, sino la crudeza de la supervivencia.

En México, un médico general gana menos que un auto seminuevo al mes. Menos que un teléfono de gama alta. Menos, incluso, que el sueldo de algunas profesiones con menor formación académica.

La evolución cultural no ha sido amable con ellos: han quedado atrapados en un ecosistema donde la vocación es su único combustible y donde el Estado, cual depredador simpático, los mantiene con tabuladores congelados y contratos temporales.

Aquí no existe la paradoja del médico rico y miserable. Aquí es más bien una ecuación darwiniana simple:

médicos pobres + jornadas extensas + violencia en hospitales + incertidumbre laboral = una especie en riesgo funcional.

Durante décadas se nos vendió la imagen del médico como una figura casi sacerdotal. En Latinoamérica, la bata blanca era un símbolo de estatus, ascenso social y estabilidad. Pero ese prestigio cultural ha sufrido un proceso de erosión, como una roca sedimentaria golpeada por olas incesantes.

Hoy, en muchos hospitales rurales y urbanos, el médico es simultáneamente héroe, terapeuta, burócrata, psicólogo, administrador… y blanco de frustraciones sociales.

Si observáramos a los médicos como si fueran una especie más en un experimento evolutivo, el diagnóstico sería claro:

Estrés crónico, equivalente a una inflamación sistémica.

Burnout, semejante a un síndrome de desgaste neural.

Desesperanza, ese neurotransmisor negativo que baja el umbral de tolerancia al absurdo.

Fuga de talento, comparable a una migración masiva por pérdida de hábitat.

Estados Unidos tiene médicos que ganan demasiado para lo poco que viven. México tiene médicos que viven demasiado para lo poco que ganan.

Ambos están atrapados en la misma paradoja biomédica: cuidan cuerpos, pero nadie cuida el suyo.

¿Qué sigue? Una evolución o una extinción

Si queremos que la profesión médica sobreviva con dignidad en América Latina, habrá que reconfigurar por completo su entorno ecológico.

https://t.co/uA1lGF60e4

[Dani Hozbor @DaniHozbor]

Sobre Coqueluche o pertussis, importante info dado el brote que estamos atravesando👇https://t.co/UAuBp7rusR
Para derivación de muestras clínicas para análisis laboratorial desde los centros/hospitales de atención de la salud, transporte, conservación etc no duden en escribirme

[Dra Leda Guzzi @LedaDra]

Gran avance en materia de derechos y salud pública del vecino país!!

[Vilma Ibarra @VilmaIbarraL]

Ejemplar. Uruguay sancionó la ley de eutanasia. Si una persona padece una enfermedad incurable y sufrimiento extremo, podrá elegir una muerte digna. Se reconoce el derecho individual a poner fin a una agonía intolerable. Eso sí es respeto a la libertad

[Vilma Ibarra @VilmaIbarraL]

Ejemplar. Uruguay sancionó la ley de eutanasia. Si una persona padece una enfermedad incurable y sufrimiento extremo, podrá elegir una muerte digna. Se reconoce el derecho individual a poner fin a una agonía intolerable. Eso sí es respeto a la libertad

[nychealthy @nycHealthy]

Anyone who gets COVID-19 can get long COVID. However, some people have a higher chance of getting long COVID than others because they are at greater risk of getting COVID-19 in the first place or having more severe illness.

Learn more: https://t.co/paiKZT1o2H

[Rodrigo Quiroga 🔬 @rquiroga777]

Banderazo en Córdoba para pedir urgente aprobación de la ley de emergencia científica hoy en Diputados!

Ciencia es soberanía! ❤️🔬🇦🇷

[Pablo Yedlin @pyedlin]

Autoridades de la comisión de salud de @DiputadosAR expresamos nuestra preocupación por una actividad “antivacunas”que pretende organizar una diputada del @proargentina y pedimos su suspensión.
La “anticiencia” no puede tener lugar en un país serio.

[Juan Parodi @Juan_Parodi]

Esto que le pasó al querido @OsquiGuzman es un espanto

[Gonzalo Perez @gonzaeperez]

ACTUALIZACIÓN 2025 GUÍA ESC DISLIPEMIAS
#ESCCongress 7/7
🔴Estatinas en 👥con VIH ≥40 años en prevención primaria, independientemente del riesgo CV y niveles de LDL
🔴Considerar Estatinas en pac con alto riesgo de desarrollar cardiotoxicidad por Qtx

[DrDemetre @dr_demetre]

My resignation letter from CDC.

Dear Dr. Houry,

I am writing to formally resign from my position as Director of the National Center for Immunization and Respiratory Diseases at the Centers for Disease Control and Prevention (CDC), effective August 28, 2025, close of business.   I am happy to stay on for two weeks to provide transition, if requested.

This decision has not come easily, as I deeply value the work that the CDC does in safeguarding public health and am proud of my contributions to that critical mission. However, after much contemplation and reflection on recent developments and perspectives brought to light by Secretary Robert F. Kennedy Jr., I find that the views he and his staff have shared challenge my ability to continue in my current role at the agency and in the service of the health of the American people. Enough is enough.

While I hold immense respect for the institution and my colleagues, I believe that it is imperative to align my professional responsibilities to my system of ethics and my understanding of the science of infectious disease, immunology, and my promise to serve the American people.  This step is necessary to ensure that I can contribute effectively in a capacity that allows me to remain true to my principles.

I am unable to serve in an environment that treats CDC as a tool to generate policies and materials that do not reflect scientific reality and are designed to hurt rather than to improve the public’s health.  The recent change in the adult and children’s immunization schedule threaten the lives of the youngest Americans and pregnant people.   The data analyses that supported this decision have never been shared with CDC despite my respectful requests to HHS and other leadership.  This lack of meaningful engagement was further compounded by a “frequently asked questions” document written to support the Secretary’s directive that was circulated by HHS without input from CDC subject matter experts and that cited studies that did not support the conclusions that were attributed to these authors.  Having worked in local and national public health for years, I have never experienced such radical non-transparency, nor have I seen such unskilled manipulation of data to achieve a political end rather than the good of the American people.

It is untenable to serve in an organization that is not afforded the opportunity to discuss decisions of scientific and public health importance released under the moniker of CDC.  The lack of communication by HHS and other CDC political leadership that culminates in social media posts announcing major policy changes without prior notice demonstrate a disregard of normal communication channels and common sense.  Having to retrofit analyses and policy actions to match inadequately thought-out announcements in poorly scripted videos or page long X posts should not be how organizations responsible for the health of people should function.  Some examples include the announcement of the change in the COVID-19 recommendations for children and pregnant people, the firing of scientists from ACIP by X post and an op-ed rather than direct communication with these valuable experts, the announcement of new ACIP members by X before onboarding and vetting have completed, and the release of term of reference for an ACIP workgroup that ignored all feedback from career staff at CDC.

The recent term of reference for the COVID vaccine work group created by this ACIP puts people of dubious intent and more dubious scientific rigor in charge of recommending vaccine policy to a director hamstrung and sidelined by an authoritarian leader.   Their desire to please a political base will result in death and disability of vulnerable children and adults.  Their base should be the people they serve not a political voting bloc.

I have always been first to challenge scientific and public health dogma in my career and was excited by the opportunity to do so again.  I was optimistic that there would be an opportunity to brief the Secretary about key topics such as measles, avian influenza, and the highly coordinated approach to the respiratory virus season.  Such briefings would allow exchange of ideas and a shared path to support the vision of “Making America Healthy Again.”  We are seven months into the new administration, and no CDC subject matter expert from my Center has ever briefed the Secretary.  I am not sure who the Secretary is listening to, but it is quite certainly not to us.  Unvetted and conflicted outside organizations seem to be the sources HHS use over the gold standard science of CDC and other reputable sources.  At a hearing, Secretary Kennedy said that Americans should not take medical advice from him.  To the contrary, an appropriately briefed and inquisitive Secretary should be a source of health information for the people he serves. As it stands now, I must agree with him, that he should not be considered a source of accurate information.

The intentional eroding of trust in low-risk vaccines favoring natural infection and unproven remedies will bring us to a pre-vaccine era where only the strong will survive and many if not all will suffer.  I believe in nutrition and exercise.  I believe in making our food supply healthier, and I also believe in using vaccines to prevent death and disability.  Eugenics plays prominently in the rhetoric being generated and is derivative of a legacy that good medicine and science should continue to shun.

The recent shooting at CDC is not why I am resigning.  My grandfather, who I am named after, stood up to fascist forces in Greece and lost his life doing so.  I am resigning to make him and his legacy proud.   I am resigning because of the cowardice of a leader that cannot admit that HIS and his minions’ words over decades created an environment where violence like this can occur.  I reject his and his colleagues’ thoughts and prayers, and advise they direct those to people that they have not actively harmed.

For decades, I have been a trusted voice for the LGBTQ community when it comes to critical health topics.  I must also cite the recklessness of the administration in their efforts to erase transgender populations, cease critical domestic and international HIV programming, and terminate key research to support equity as part of my decision.

Public health is not merely about the health of the individual, but it is about the health of the community, the nation, the world. The nation’s health security is at risk and is in the hands of people focusing on ideological self-interest.

I want to express my heartfelt gratitude for the opportunities for growth, learning, and collaboration that I have been afforded during my time at the CDC. It has been a privilege to work alongside such dedicated professionals who are committed to improving the health and well-being of communities across the nation even when under attack from within both physically and psychologically.

Thank you once again for the support and guidance I have received from you and previous CDC leadership throughout my tenure. I wish the CDC continued success in its vital mission and that HHS reverse its dangerous course to dismantle public health as a practice and as an institution.  If they continue the current path, they risk our personal well-being and the security of the United States.

Sincerely,

Demetre C. Daskalakis MD MPH (he/his/him)

[Veronica Nostro @VNostro]

Hoy y hasta el infinito #soychino
@ddeurieta @jairostraccia @YammiSegovia @caastroagustin