Diseases & Vaccines

History of Vaccines Blog

Last Polio in Americas

June 16, 2010

Antigenic Shift

June 16, 2010

Spanish Influenza

June 16, 2010

Tetanus 2

September 28, 2010

This neonate is displaying a bodily rigidity produced by Clostridium tetani exotoxin, called “neonatal tetanus”.  Neonatal tetanus occurs in infants born without protective passive immunity, because the mother is not immune. It usually occurs through infection of the unhealed umbilical stump, particularly when the stump is cut with an unsterile instrument.

Tetanus 1

September 28, 2010

This micrograph depicts a group of Clostridium tetani bacteria, responsible for causing tetanus in humans. Tetanus is an acute, often fatal, disease caused by an exotoxin produced by C. tetani.

Neisseria meningitidis

June 16, 2010

Scanning electron microscope image of Neisseria meningitidis, bacteria that cause meningococcal disease, x3750. About the image technique: Modern technologies such as electron microscopy can give finer detail to bacteria than optical (light) microscopy and can even be used to show internal features. Electron micrographs are generated by a high-energy beam of electrons, rather than by light and lenses, as with an optical microscope.

Antigen-Presenting Cell

September 27, 2010

Disease Spread

June 16, 2010

Multiple Puncture TB 2

June 16, 2010

First step in multiple puncture technique of TB vaccination. Three rows of ten punctures each would follow. This method is not currently used.

Measles Spreads from Disneyland

February 2, 2015

After a record year for measles cases in the post-elimination era, measles cases continued to spread in January 2015. Visitors to Disneyland in Anaheim, California, were exposed to measles via an as-yet-unidentified person. As of the end of January, the CDC had identified at least 100 cases associated with the Disneyland exposures and called for parents to ensure their children are fully immunized.