As reported on the BBC today:
The [US] president accused the WHO of being "very China-centric" and said they "really blew" their pandemic response.
Dr Tedros has now dismissed the comments, insisting: "We are close to every nation, we are colour-blind."
After first attacking the WHO on Tuesday, President Trump renewed his criticism at his press briefing on Wednesday, saying the organization must "get its priorities right". He said the US would conduct a study to decide whether the US would continue paying contributions [...]
On Tuesday, President Trump had said the WHO appeared to be "very biased toward China".
"They called it wrong. They really - they missed the call," he said. "And we're going to put a hold on money spent to the WHO. We're going to put a very powerful hold on it, and we're going to see."
Clearly (from the same article) Tedros has rejected the notion that the WHO has a China-bias, but have they said anything more specifically rejecting the other accusations, i.e. that they "really blew" their response and that they "missed the call" (when the pandemic started)?
Republican Senator Lindsey Graham, a close ally of Trump, vowed there would not be any funding for the WHO in the next Senate appropriations bill.
"I'm in charge of the appropriations subcommittee. I'm not going to support funding the WHO under its current leadership. They've been deceptive, they've been slow, and they've been Chinese apologists," Graham said in an interview with Fox News.
Last week, Republican Senator Marco Rubio called for the resignation of WHO Director General Tedros Adhanom Ghebreyesus, saying "he allowed Beijing to use the WHO to mislead the global community".
These latter accusations from Republican senators are even more direct and specific (than "blew"), accusing the WHO of deliberate deception, in cahoots with Beijing, besides being "slow".
Thanks to @ItalianPhilosophers for finding this, Fox News has been emphasizing this bit in their coverage of the Republican-WHO spat:
Last month, Taiwan accused the WHO of ignoring a warning it sent in December about human-to-human transmission of coronavirus. “Preliminary investigations conducted by the Chinese authorities have found no clear evidence of human-to-human transmission of the novel coronavirus (2019-nCoV) identified in Wuhan, China,” the organization tweeted in January.
Which may be what the US Republicans are alluding to with "slow".
Somewhat more obvious/predictible, Fox News is critical of the WHO's criticism of the US travel ban:
the WHO responded to Trump’s travel ban on foreign nationals coming from China by saying that “travel bans to affected areas or denial of entry to passengers coming from affected areas are usually not effective in preventing the importation” of coronavirus cases and instead could have a “have a significant economic and social impact.”
Criticism of the travel ban and other pro-China statements have brought renewed questions about the U.S. funding the agency.
(The latter issue has been the topic of two separate questions here e.g., so I don't want to reash that.)
If the WHO itself has not replied to those (other) allegations of Trump/Republicans/Fox-News/Taiwan more specifically, has the WHO's record in this respect been defended by others, e.g. has the press said anything in support/defence of WHO's actions in response to the pandemic that can address some of Trump's accusations (from those quotes that I have emphasized)?