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. Baré person getting Sinovac COVID-19 vaccine
    Health & Medicine

    Here’s what makes 4 promising COVID-19 vaccines unique — and potentially useful

    More vaccines still in the works are exploring a variety of approaches, including pills and electrical zaps.

  2. person getting vaccinated at mass vaccination site
    Health & Medicine

    The COVID-19 pandemic is now a year old. What have scientists learned?

    As we enter the pandemic’s second year, researchers share what they’ve learned and what they look forward to.

  3. children hugging happy older person
    Health & Medicine

    People fully vaccinated against COVID-19 can socialize without masks, CDC says

    Two weeks after their final COVID-19 shot, people can visit other vaccinated people indoors without masks or physical distancing.

  4. players in an NBA game in 2020
    Health & Medicine

    Most pro athletes who got COVID-19 didn’t develop heart inflammation

    Few professional athletes developed heart inflammation after a bout of COVID-19, but how the findings relate to the general public isn’t clear.

  5. illustration of a woman walking across of a bridge of DNA

    DNA databases are too white, so genetics doesn’t help everyone. How do we fix that?

    A lack of diversity in genetic databases is making precision medicine ineffective for many people. One historian proposes a solution: construct reference genomes for individual populations.

  6. a person fills a needle with COVID-19 vaccine
    Health & Medicine

    People who have had COVID-19 might need only one shot of a coronavirus vaccine

    Antibody levels in health care workers who had COVID-19 and got vaccinated were more than 500 times higher than those vaccinated but never infected.

  7. vaccine syringe with Johnson & Johnson logo
    Health & Medicine

    What you need to know about J&J’s newly authorized one-shot COVID-19 vaccine

    Even as a third COVID-19 vaccine becomes available in the United States, questions remain over how well it works and if people will take it.

  8. Jack Cook recieving his covid-19 vaccine shot in his car
    Health & Medicine

    Can a COVID-19 vaccine’s second dose be delayed? It’s complicated

    New data indicate that delaying second doses of COVID-19 vaccines may still provide protection, but some scientists aren’t convinced it’s OK.

  9. street scene in Lagos, Nigeria

    The first human genetic blueprint just turned 20. What’s next?

    The Human Genome Project led to many medical advances. Deciphering 3 million African genomes and using new tech to fill gaps could lead to even more.

  10. neandertal skeleton
    Health & Medicine

    Some Neandertal genes in people today may protect against severe COVID-19

    Neandertal DNA on chromosome 12 may affect genes involved in a biochemical chain reaction that ends with the destruction of viral RNA.

  11. collage of people wearing different masks
    Health & Medicine

    Making masks fit better can reduce coronavirus exposure by 96 percent

    Double masking, rubber bands and other hacks can produce a tighter fit and prevent aerosol particles that can carry coronavirus from getting through.

  12. Sara Berech draws a dose of Johnson & Johnson’s vaccine
    Health & Medicine

    One-shot COVID-19 vaccine is effective against severe disease

    The effectiveness of Johnson & Johnson’s vaccine at preventing hospitalization and death holds up against a South Africa variant of the coronavirus.