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The GHSN blog is regularly updated with latest news articles on health security. As a member we encourage you to share any news articles you find informative so that we can share research around the world.
A leading Israeli doctor believes the country may be close to reaching "herd immunity".
The US, South Africa and European Union will temporarily stop the rollout of the Johnson & Johnson (J&J) Covid jab, after reports of rare blood clotting.
India's Covid caseload has risen sharply in the past few weeks.
The country's been reporting more than 150,000 cases a day. In January and February daily cases fell below 20,000.
The G7 group of wealthy nations must lead a "Herculean mobilisation" to push for global mass vaccination against Covid, former PM Gordon Brown has said.
China's top disease control official has said the efficacy of the country's Covid vaccines is low, in a rare admission of weakness.
Brazil has recorded more than 4,000 Covid-related deaths in 24 hours for the first time, as a more contagious variant fuels a surge in cases.
Under-30s in the UK are to be offered an alternative Covid vaccine to the AstraZeneca jab due to the evidence linking it to rare blood clots.
People diagnosed with Covid-19 in the previous six months were more likely to develop depression, dementia, psychosis and stroke, researchers have found.
The White House has ruled out introducing mandatory federal Covid-19 vaccination passports, saying citizens' privacy and rights should be protected.
Pfizer says its vaccine is preventing 91% of coronavirus cases in the six months after people are immunised.