Should it be "in" instead?

Please ignore the earlier post above.

Infected after holiday to Europe, pregnant mum gives birth to baby with Covid-19 antibodies.

Should it be "holiday in" instead?

Thanks!

I'd write it this way:

Infected after a holiday in Europe, a pregnant mum gives birth to a baby with Covid-19 antibodies.

It should be "holiday in". I also added the article "a" — "a holiday", "a pregnant mum", and "a baby". Without the article it reads like a newspaper headline.

Many thanks, hightor, for your effort and time!

Should it be "gave birth" instead of "gives birth"?

That would depend on the context. If you're simply describing an event, "gave birth" is better. Notice how it can stand alone as a meaningful statement. But if you are trying to set up a case to illustrate a particular point you could say "gives birth" — but you'll need to complete the point you're trying to make.

Look at these sentences:

Infected after a holiday in Europe, a pregnant mum gives birth to a baby with Covid-19 antibodies. Unaware that his friends are Covid positive, a man contracts the disease. Believing she was immune, a woman enters a crowded shopping mall without wearing a face mask.

They all set up a situation which should be resolved.

Like this:

Infected after a holiday in Europe, a pregnant mum gives birth to a baby with Covid-19 antibodies. Unaware that his friends are Covid positive, a man contracts the disease. Believing she was immune, a woman enters a crowded shopping mall without wearing a face mask. All around the world, people are dealing with the spread of the Covid-19 pandemic.

Many thanks, hightor!