How many Covid-19 vaccine candidates is WHO monitoring globally?

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The World Health Organization is monitoring 168 candidate Covid-19 vaccines globally.

The World Health Organization (WHO) is tracking a total of 168 candidate vaccines for Covid-19 that are currently under development worldwide. Of this extensive list, 28 have advanced to various stages of human testing, with six of those having reached the most critical Phase 3 of clinical trials.
Global Vaccine Development Landscape

Globally, a significant effort is underway to develop a vaccine against Covid-19, with 168 distinct candidate vaccines being pursued. This figure represents the total number of potential vaccines in various stages of research and development by different institutions and countries.
Vaccines Undergoing Human Trials

Within the broader group of candidate vaccines, 28 have progressed to the point where they are being tested on human subjects. This transition signifies a crucial step, moving from laboratory research and animal testing to evaluating safety and efficacy in people.
Vaccines in Advanced Clinical Trials

Among the 28 vaccines undergoing human testing, six have achieved the furthest stage of development, which is Phase 3 clinical trials. This phase involves large-scale studies with thousands of participants to confirm the vaccine's effectiveness and monitor for any adverse reactions.

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How many Covid-19 vaccine candidates is WHO monitoring globally?

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