often attributive
: a serotype of haemophilus (Haemophilus influenzae type B) that causes bacterial meningitis and pneumonia especially in children
Hib disease
Hib vaccine
Examples of Hib in a Sentence
Recent Examples on the Web
At the time, three childhood vaccines contained thimerosal: the diphtheria, tetanus, acellular pertussis (DTaP), hepatitis B and type b (Hib) vaccines.
—
Tara Haelle, Scientific American, 25 June 2025
These include the Hib, MenB, MenACWY and PCV15 and PPSV23 vaccines, says Hasbun.
—Daryl Austin, USA Today, 26 Apr. 2025
Nine vaccines were included in the analysis: diphtheria, tetanus and pertussis or DTaP; Haemophilus influenzae type b or Hib; poliovirus; measles, mumps and rubella; hepatitis B; varicella; hepatitis A; pneumococcal conjugate and rotavirus.
—Jacqueline Howard, CNN, 8 Aug. 2024
However, your baby will need boosters of the following:
Rotavirus (dose 2)
DTaP (dose 2)
Hib (dose 2)
Pneumococcal conjugate (dose 2)
Inactivated poliovirus (dose 2)
6 Month Vaccines
The infant vaccine schedule introduces a couple of new vaccines at 6 months—COVID-19 and the flu shot.
—Parents Editors, Parents, 14 Nov. 2023
Pneumococcal and Hib vaccinations should protect coronavirus patients from these infections and thus significantly cut the risk of serious pneumonia.
—Robert Root-Bernstein, The Conversation, 14 Oct. 2020
There are four basic types of vaccines: pneumococcal vaccines, Hib vaccines, two meningococcal vaccines and the Bacille Calmette-Guérin vaccine that protects against tuberculosis.
—Sandee Lamotte, CNN, 12 Jan. 2023
The meningococcal, pneumococcal, and Hib immunizations are all effective at helping to prevent infections, per the CDC.
—Sarah Lemire, Health.com, 2 Feb. 2022
Preventing pneumococcal and Hib complications of influenza and COVID-19, and perhaps proxy-vaccinating against SARS-CoV-2 itself, helps everyone.
—Robert Root-Bernstein, The Conversation, 14 Oct. 2020
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Tara Haelle, Scientific American, 25 June 2025
These include the Hib, MenB, MenACWY and PCV15 and PPSV23 vaccines, says Hasbun.
—Daryl Austin, USA Today, 26 Apr. 2025
Nine vaccines were included in the analysis: diphtheria, tetanus and pertussis or DTaP; Haemophilus influenzae type b or Hib; poliovirus; measles, mumps and rubella; hepatitis B; varicella; hepatitis A; pneumococcal conjugate and rotavirus.
—Jacqueline Howard, CNN, 8 Aug. 2024
However, your baby will need boosters of the following:
Rotavirus (dose 2)
DTaP (dose 2)
Hib (dose 2)
Pneumococcal conjugate (dose 2)
Inactivated poliovirus (dose 2)
6 Month Vaccines
The infant vaccine schedule introduces a couple of new vaccines at 6 months—COVID-19 and the flu shot.
—Parents Editors, Parents, 14 Nov. 2023
Pneumococcal and Hib vaccinations should protect coronavirus patients from these infections and thus significantly cut the risk of serious pneumonia.
—Robert Root-Bernstein, The Conversation, 14 Oct. 2020
There are four basic types of vaccines: pneumococcal vaccines, Hib vaccines, two meningococcal vaccines and the Bacille Calmette-Guérin vaccine that protects against tuberculosis.
—Sandee Lamotte, CNN, 12 Jan. 2023
The meningococcal, pneumococcal, and Hib immunizations are all effective at helping to prevent infections, per the CDC.
—Sarah Lemire, Health.com, 2 Feb. 2022
Preventing pneumococcal and Hib complications of influenza and COVID-19, and perhaps proxy-vaccinating against SARS-CoV-2 itself, helps everyone.
—Robert Root-Bernstein, The Conversation, 14 Oct. 2020
Cite this Entry
“Hib.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Hib. Accessed 18 Jul. 2025.
Copy CitationMedical Definition
Hib
nounoften attributive
: a serotype of a bacterium of the genus Haemophilus (H. influenzae type B) that causes bacterial meningitis and pneumonia especially in children
Hib disease
a Hib vaccine
see conjugate vaccine
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