Lawsuits Mount Against Shingles VaccineDrugwatch.com is reporting that Merck's shingles vaccine, Zostavax, is facing several lawsuits for causing shingles, the very thing the vaccine is supposed to protect against. Eighteen people from across the country filed one of the first Zostavax lawsuits in New Jersey. The lawsuit alleges the vaccine caused people to develop shingles. The outbreak led to hospitalization and chronic nerve pain called post-herpetic neuralgia. “Merck knew or should have known that its product caused viral infection and was therefore not safe,” the suit said. Jane Boda filed one of the early lawsuits in Wisconsin in May 2018. The lawsuit claims Zostavax gave Boda shingles. She says she suffered chronic nerve damage as a result.