Laboratory biosafety manual, 4th edition

This fourth edition of the manual builds on the risk assessment framework introduced in the third edition. A thorough, evidence-based and transparent assessment of the risks allows safety

International Day for Biological Diversity: Harmony between nature

This year''s International Day for Biological Diversity, on Thursday, 22 May 2025, highlights the inherent connections between people and the natural world through the theme,

WHO prequalifies an additional novel oral polio vaccine, strengthening

The World Health Organization (WHO) has prequalified an additional novel oral polio vaccine type 2 (nOPV2), further strengthening the global supply of a vaccine at the heart of efforts to

Biologicals

Biologicals are a class of medicines made from living cells taken from plants, animals or bacteria. These cells are use in creating many types of health care products, including vaccines. This group of

Gender

Gender interacts with but is different from sex, which refers to the different biological and physiological characteristics of females, males and intersex persons, such as chromosomes,

Anxiety disorders

Anxiety disorders, like other mental health conditions, result from a complex interaction of social, psychological and biological factors. Anyone can have an anxiety disorder, but people who

Food safety

Food safety fact sheet provides key facts and information on major foodborne illnesses, causes, evolving world and food safety and WHO response.

Health products policy and standards

The catalogue of international reference standards for biological products is updated following the Expert Committee on Biological Standardization meetings. See below for the catalogue, listed in

Sexual health

Sexuality is influenced by the interaction of biological, psychological, social, economic, political, cultural, legal, historical, religious and spiritual factors.” (WHO, 2006a) There is a growing

Ionizing radiation and health effects

WHO fact sheet on ionizing radiation, health effects and protective measures: includes key facts, definition, sources, type of exposure, health effects, nuclear emergencies, WHO response.