Tina Hesman Saey

Tina Hesman Saey

Senior Writer, Molecular Biology

Senior writer Tina Hesman Saey is a geneticist-turned-science writer who covers all things microscopic and a few too big to be viewed under a microscope. She is an honors graduate of the University of Nebraska-Lincoln where she did research on tobacco plants and ethanol-producing bacteria. She spent a year as a Fulbright scholar at the Georg-August University in Göttingen, Germany, studying microbiology and traveling.  Her work on how yeast turn on and off one gene earned her a Ph.D. in molecular genetics at Washington University in St. Louis. Tina then rounded out her degree collection with a master’s in science journalism from Boston University. She interned at the Dallas Morning News and Science News before returning to St. Louis to cover biotechnology, genetics and medical science for the St. Louis Post-Dispatch. After a seven year stint as a newspaper reporter, she returned to Science News. Her work has been honored by the Endocrine Society, the Genetics Society of America and by journalism organizations.

All Stories by Tina Hesman Saey

  1. a nurse draws up a syringe from a vial of COVID-19 vaccine
    Health & Medicine

    No, COVID-19 vaccines won’t make you infertile

    Contrary to misinformation spread by Aaron Rodgers and Nicki Minaj, neither the Pfizer, Moderna nor J&J vaccines cause infertility, data show.

  2. vials of covid-19 vaccines
    Health & Medicine

    How to choose a COVID-19 vaccine booster shot

    To help you choose between the Pfizer, Moderna and Johnson & Johnson COVID-19 boosters, one reporter looked to the evidence and consulted experts.

  3. woman receiving a booster shot from a pharmacist
    Health & Medicine

    Here’s what we know about booster shots for Moderna’s and J&J’s COVID-19 vaccines

    Immunity against the coronavirus is waning, but additional doses of the same or different COVID-19 vaccines could help protect vulnerable people.

  4. a person holding a small red chili pepper with their fingertips
    Health & Medicine

    Discovering how we sense temperature and touch wins the 2021 medicine Nobel Prize

    Finding sensors on nerve cells that detect temperature and pressure nets California scientists David Julius and Ardem Patapoutian a Nobel Prize.

  5. ten reddish molnupiravir pills on a white background
    Health & Medicine

    A new antiviral pill cuts COVID-19 hospitalization and death rates

    Merck says its drug, molnupiravir, stops viral replication and can be taken right after a COVID-19 diagnosis.

  6. a small girl sits with her mom in an exam room as a nurse administers Pfizer's COVID-19 vaccine
    Health & Medicine

    Pfizer says its COVID-19 vaccine is safe and works well for kids ages 5–11

    A lower dose of the vaccine produced as many antibodies in elementary school–age kids as a full-dose shot did in teens and young adults.

  7. a researcher sits crosslegged on a hospital bed with their face inside a silver cone that's connected to a transparent chamber full of scientific apparatus
    Health & Medicine

    New studies hint that the coronavirus may be evolving to become more airborne

    More coronavirus RNA is in fine aerosols than in larger droplets, but masks can reduce the amount of virus in the air.

  8. Parents and kids lined up outside a school
    Health & Medicine

    Schools are reopening. COVID-19 is still here. What does that mean for kids?

    Children do get COVID-19, and some become very sick and even die. But the disease’s long-term effects on kids remain uncertain.

  9. A man wearing a surgical mask passes a sign that reads "you still have to wear a mask"
    Health & Medicine

    New delta variant studies show the pandemic is far from over

    The coronavirus’s delta variant is different from earlier strains of the virus in worrying ways, health officials are discovering.

  10. a crowd of people wearing face masks in Grand Central Station in New York City
    Health & Medicine

    Why the CDC says it’s crucial to start wearing masks indoors again

    While unvaccinated people are driving the spread of the coronavirus, vaccinated people infected with the delta variant may also easily transmit it.

  11. cars lined up at a COVID-19 rapid testing site
    Health & Medicine

    Why it’s still so hard to find treatments for early COVID-19

    Small studies, unexpected side effects and incomplete information about how drugs work can stymie clinical trials for drugs that can treat COVID-19.

  12. a crowd of people

    Only a tiny fraction of our DNA is uniquely human

    Some of the exclusively human tweaks to DNA may have played a role in brain evolution.