Background In response to recent outbreaks of vaccine-preventable diseases and concerns around vaccine refusal, several high-income countries have adopted or reformed vaccine mandate policies. While all make it more difficult for parents to refuse vaccines, the nature and scope of 'mandatory vaccination' is heterogeneous, and there has been no attempt to develop a detailed, comparative systematic account of the possible forms mandates can take. Methods We compare the construction, introduction / amendment, and operation of six new high profile vaccine mandates in Australia, France, Germany, Italy, California, and Washington. We rank these policies in order of their relative restrictiveness and analyze other differences between them. Results New mandate instruments differ in their effects on behavior, and with regard to their structure, exemptions, target populations, consequences and enforcement. We identify diverse means by which vaccine mandates can restrict behaviors, various degrees of severity, and different gradations of intensity in enforcement. Conclusion We suggest that politico-cultural context and vaccine policy history are centrally important factors for vaccine mandate policymakers to consider. It matters whether citizens trust their governments to limit individual freedom in the name of public health, and whether citizens have previously been subjected to vaccine mandates. Furthermore, political communities must consider the diverse mechanisms by which they may construct vaccine mandate policies; whether through emergency decrees or ordinary statutes, and how (or whether) to involve various stakeholder groups in developing and implementing new vaccine mandate policies.

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BackgroundCurrent and past pertussis epidemiology in the two parts of Germany is compared in the context of different histories of vaccination recommendations and coverage to better understand patterns of disease transmission.MethodsAvailable regional pertussis surveillance and vaccination coverage data, supplemented by a literature search for published surveys as well as official national hospital and mortality statistics, were analyzed in the context of respective vaccination recommendations from 1964 onwards.ResultsRoutine childhood pertussis vaccination was recommended in the German Democratic Republic (GDR) from 1964 and in former West German states (FWG) from 1969, but withdrawn from 1974–1991 in FWG. Pertussis incidence declined to <1 case/100.000 inhabitants in GDR prior to reunification in 1991, while in FWG, where pertussis was not notifiable after 1961, incidence was estimated at 160–180 cases/100.000 inhabitants in the 1970s-1980s. Despite recommendations for universal childhood immunization in 1991, vaccination coverage decreased in former East German States (FEG) and increased only slowly in FWG. After introduction of acellular pertussis vaccines in 1995, vaccination coverage increased markedly among younger children, but remains low in adolescents, especially in FWG, despite introduction of a booster vaccination for 9–17 year olds in 2000. Reported pertussis incidence increased in FEG to 39.3 cases/100.000 inhabitants in 2007, with the proportion of adults increasing from 20% in 1995 to 68% in 2007. From 2004–2007, incidence was highest among 5–14 year-old children, with a high proportion fully vaccinated according to official recommendations, which did not include a preschool booster until 2006. Hospital discharge statistics revealed a ~2-fold higher pertussis morbidity among infants in FWG than FEG.ConclusionThe shift in pertussis morbidity to older age groups observed in FEG is similar to reports from other countries with longstanding vaccination programs and suggests that additional booster vaccination may be necessary beyond adolescence. The high proportion of fully vaccinated cases in older children in FEG suggests waning immunity 5–10 years after primary immunisation in infancy. The higher incidence of pertussis hospitalisations in infants suggests a stronger force of infection in FWG than FEG. Nationwide pertussis reporting is required for better evaluation of transmission patterns and vaccination policy in both parts of Germany.

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During the influenza A(H1N1)pdm09 pandemic in 2009/10, a total of 13 consecutive surveys were carried out of the general population in Germany to monitor knowledge, attitude and behaviour concerning the disease and vaccination against pandemic influenza in real time. In total, 13,010 persons aged 14 years or older were interviewed by computer-assisted telephone techniques between November 2009 and April 2010. During the peak of the pandemic, only 18% of participants stated that they perceived the risk of pandemic influenza as high; this proportion fell to 10% in January 2010. There was a significant difference in information-seeking behaviour among population subgroups concerning the disease and vaccine uptake. However, in all subgroups, conventional media sources such as television, radio and newspapers were more frequently used than the Internet. While the majority of participants (78%) felt sufficiently informed to make a decision for or against vaccination, overall vaccination coverage remained low. Among those who decided against vaccination, fear of adverse events and perception that the available vaccines were not sufficiently evaluated were the most frequently stated reasons. Such mistrust in the vaccines and the perceived low risk of the disease were the main barriers that contributed to the low vaccination coverage in Germany during the pandemic.