Not.
In fact, the swabs used for nucleic acid and antigen testing are indeed different from regular swabs, but they contain no reagents and are not toxic. The swabs used for sampling are called "sampling swabs" and look similar to regular swabs, but the tips are actually flocked swabs.
The reason for the flocked swab is that it is more suitable for sampling and testing. Sampling swabs are produced for sampling, and do not contain any soaking reagents themselves, nor do they need to contain reagents; at the same time, sampling swabs belong to the medical device, the basic requirement of qualified products is non-toxic and harmless.
Sampling swab enlargement
In fact, but all the "family poke" of the public can feel the difference between sampling swabs and ordinary cotton swabs: in the use of antigen detection kits, after the sampling is completed, you need to sample swabs in the preservation of liquid rotating mixing at least 30 seconds, and then squeeze the swab head with your hand across the outer wall of the sampling tube for at least 5 seconds, so that the sample elution is completed. If it is an ordinary cotton swab, not only can't the sample be eluted in this process, but also the degreasing cotton will be inhaled into the preservation fluid, even if it is squeezed out, it is still a mixture of the sample and the preservation fluid.
In response to the online "sampling swabs toxic," the claim is nonsense. Tang Rong said, sampling swabs are produced for sampling, itself does not contain any soaking reagent, also does not need to contain reagents; at the same time, sampling swabs belong to the medical device, the basic requirements of qualified products is non-toxic and harmless.