Slight change in first name on new passport
My son aged 4 years had his first name written as "Amaar" in his old passport which carried UK visitor visa (valid for 10 years), US visa (valid for 5 years) and Schengen visa (valid for 3 years, got from the French Embassy). All the three visas are still valid. I have got his new passport issued in which his first name is spelled "Amar". The change was made at our request to match the name to our local dialect. In a nutshell, we have removed a single 'a' from his first name. The passport office returned us the old passport and stamped it with annotation that a new passport has been issued. The new passport also carries number of his old passport.
My question is whether we need to apply for the UK, US and Schengen visas afresh. An urgent advice will be very helpful as we need to travel to the UK and France shortly. Many thanks.