Global Vaccine Safety

Evaluating Vaccine Safety Causality Assessment


Indian and Zimbabwean experts gathered in India from 24 to 30 April 2017 in order to apply the WHO revised methodology for causality assessment of Adverse Events Following Immunization (AEFI). A total of 250 anonymized cases of serious AEFI from both countries were evaluated. The workshop, organized by the International Clinical Epidemiology Network (INCLEN), will allow to assess the inter - and intra-country agreement in classification of cases and provide inputs for reviewing and revising the current methodology. An electronic AEFI causality assessment software developed by WHO was also evaluated. This study is being conducted under the oversight of the Global Advisory Committee on Vaccine Safety (GACVS) and the findings will be deliberated at the December 2017 GACVS meeting.

The Vaccine Safety Net portal is live!


The Vaccine Safety Net portal was established by WHO to facilitate contacts, exchange of information, tips and news among Network members and also provide a collaborative platform for members to develop common projects on vaccine safety communication using digital means. The portal is also centralizing and helping further disseminate, to the public and health care professionals, reliable information on the safety of vaccines, on both long standing and emerging public health issues.

The portal was launched mid February 2017 and during the first month was already consulted by more than 2700 visitors mainly from India, Italy and the United States, who viewed close to14 800 pages.

WHO Calls the Highest Level of Government in African Countries to Ensure Strong Vaccine Safety System


A high-level working dinner to discuss the Global Vaccine Safety Initiative (GVSI) policy was held on 23 March, 2017 with more than 80 participants from AU Member States and delegates, senior level officials from African Union Commission, partners, and distinguished invited guests at the African Union Commission in Addis Ababa, Ethiopia. This advocacy dinner meeting was organized by World Health Organization (WHO) in collaboration with the African Union Commission. The meeting aimed to ensure that African countries establish strong vaccine safety systems. It also intended to provide the vision for a future where vaccine safety concerns are addressed in a rigorous and transparent fashion and share perspectives on 21st century approaches that are relevant to African Countries.

The Council for International Organizations of Medical Sciences (CIOMS) announces the publication of the CIOMS Guide to Active Vaccine Safety Surveillance


With more vaccine solutions available and opportunities for earlier availability of new vaccine products in resource-limited countries (e.g. vaccines against rotavirus, human papillomavirus or pneumococci) as well as new products that address diseases endemic in those countries only (e.g. malaria, dengue among others), generating reliable data about specific safety concerns is becoming a priority for all countries.
The Guide offers a practical step-by-step approach and algorithm to aid immunization professionals and decision-makers in determining the best course of action if additional vaccine safety data is needed.

The Vaccine Safety Net meeting report


The Vaccine Safety Net (VSN), a network of websites providing quality reliable information about vaccines, was established in 2003. Its members met at WHO headquarters in Geneva on 28 to 29 November 2016. The meeting was the opportunity to strengthen links between Network members, discuss innovations in managing vaccine safety information and digital communication, discuss collaborations and agree on next steps and follow up mechanisms. A portal dedicated to VSN will soon be launched allowing the public to access relevant information and members to work collaboratively from one single platform.