One in five Germans was affected by outbreak of bad breath, sweating and struggling to breathe
German passenger planes and trains have been forced to slam shut or carry passengers in via emergency doors after a new variant of the Petya virus infected the computer systems that control air conditioning and door shutters.
One in five passengers complained that they struggled to breathe or had a heavy, burning sensation in their throats. Some reported bad breath, swollen eyelids, poor vision, high fever and cramps.
The infections appear to have been caused by the new ballistic variant of the virus, WannaCry, according to the transport security and transport watchdog Bavarian State Asse.
German officials said the apparently unrelated infections were caused by the Chernobyl-like cyber attack.
The malfunctioning computer system affected more than 100 train and passenger vehicles. Hundreds of Eurostar services were affected but it is understood they are now operating on a normal schedule.
Eurostar passengers will be able to rebook their tickets on delayed and cancelled trains, it said.
Passengers on the 14 November service were not aware their air conditioning was off. Passengers were told they would arrive as normal and then given two minutes in the departure lounge, as promised, to examine their hand luggage before being allowed on board.
Passengers arriving at stations found the doors were locked and then forced to climb over baggage to get on trains that were delayed for up to an hour.
WannaCry was an attack against a global network of computer networks and is feared to have crippled computers from Nissan cars to factories.
German airports, railway stations and train stations have been on high alert after a mysterious global data theft on Friday that led to payment of ransom to secure access to the data.