The committee "highlighted the anticipated lengthy duration of this COVID-19 pandemic", the WHO said in a statement, and warned of the risk of "response fatigue" given the socio-economic pressures on countries.

The panel gathered Friday for the fourth time over the coronavirus crisis, half a year on from its January 30 declaration of a public health emergency of international concern (PHEIC) -- the WHO's highest level of alarm.

"WHO continues to assess the global risk level of COVID-19 to be very high," said its latest statement.

"The committee highlighted the anticipated lengthy duration of this COVID-19 pandemic, noting the importance of sustained community, national, regional, and global response efforts."

The novel coronavirus has killed at least 680,000 people and infected at least 17.6 million since the outbreak emerged in China last December, according to a tally from official sources compiled by AFP....

Several countries around the world have imposed strict lockdowns in a bid to control the spread of the respiratory disease, plunging economies into sharp contraction.

The committee urged the WHO to provide nuanced, pragmatic guidance on COVID-19 reactions "to reduce the risk of response fatigue in the context of socio-economic pressures".

The panel urged the WHO to support countries in preparing for the rollout of proven therapeutics and vaccines.

The committee also urged the agency to accelerate research into the remaining "critical unknowns" of the virus, such as the animal source and potential animal reservoirs.

It called for improved understanding of the epidemiology and severity of COVID-19, including its long-term health effects.

And the committee wanted more light shed on the dynamics of the virus, such as "modes of transmission, shedding, potential mutations; immunity and correlates of protection"....