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Covid 19: inhalable vaccines, the alternative to injections that some countries are using

  • Sheena Cruickshank
  • The conversation *

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Caption,

So-called mucosal vaccines can be a response to long-term immunization.

As the pandemic continues, many countries are launching their recall shots. In the UK, the autumn recall campaign offers a fourth dose for people most at risk of contracting covid, including those with pre-existing conditions and those over the age of 50.

The fall booster shots are bivalent vaccineswhich means they focus on the original strain of SARS-CoV-2 (the virus that causes covid-19) and the omicron variant.

These vaccines are effective in recharging and boosting our immunity. But, as seen with the original covid vaccines, the protection they provide, especially against infections, is expected to diminish months later.

So consider a vaccination strategy that provides a long-term immunization. A new type – mucosal vaccines – could show promise on this front.

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