How did San Diego get its hepatitis outbreak under control?

The San Diego Union-Tribune:

In the beginning of 2017, San Diego faced one of the largest hepatitis A outbreak in decades. On September 19th, over 27,000 people were vaccinated in hopes of preventing the spread of the hepatitis outbreak that began in March. One week later, over 52,000 individuals were vaccinated. Fortunately, one vaccination is over 90% effective in preventing infection. Despite mass vaccination, 20 individuals lost their lives and over 578 individuals were infected with hepatitis A in San Diego County. As of January 3rd, 2018 no new cases have been identified and over 120,000 vaccination have been administered. Although vaccinations played a key role in controlling this outbreak, a state of emergency was declared on September 1, 2017, eliciting immediate actions to control the outbreak such as widespread hand washing stations, beaching streets, and distribution of portable bathrooms in regions with a high homeless population. Widespread sanitation, vaccinations, social work efforts, and awareness all played a key role in controlling the outbreak. To read more about the Hepatitis outbreak in San Diego, click here.