On at least four occasions since 2019, Musk has predicted that his medical device company would begin human trials for a brain implant to treat severe conditions such as paralysis and blindness.

Flavoured disposable vaping devices account for one-third of US e-cigarette sales, up from less than 2% three years ago, according to a review of retail sales data.

The FDA recommended Covid-19 vaccine manufacturers Pfizer Inc and Moderna Inc to change the design of their booster shots beginning this fall to include components tailored to combat BA.4 and BA.5.

Nearly 300,000 people are living with a spinal cord injury in the US alone with a shorter lifespan than people without spinal injury, in a situation that has not improved since the 1980s.

The US follows only a handful of other countries including China, Chile, Cuba and the United Arab Emirates that are inoculating younger children with various vaccines.

The government will not recommend one shot over another, and it might note that using the same vaccine as a booster when possible is preferable, the report says.

J&J has asked the FDA to approve a shot of its own single-dose vaccine as the booster dose with a decision set for Friday.

The FDA says data for Moderna's vaccine shows a booster does increase protective antibodies, but the difference in antibody levels before and after the shot is not wide enough.

The vaccine has been shown to induce a strong immune response in the five to 11 age group in a 2,268-participant clinical trial.

Rochelle Walensky says her agency has to make recommendations based on complex, often imperfect data.

The CDC committee has voted to recommend a third dose of Pfizer vaccine for seniors and those at risk of developing a severe case of Covid-19 while the FDA has authorised the third Pfizer doses for a broader swath of the American public.

Taking large doses of this drug is dangerous and can cause serious harm.