Yes, eating raw eggs are dangerous since they can give you salmonella.
Disease-causing salmonellae have recently been re-classified into a single species, Salmonella enterica, which has numerous strains or serovars. Salmonella Typhi is a well known serovar that causes typhoid fever. Other salmonellae are frequent causes of foodborne illness, and can especially be caught from poultry and raw eggs and more generally from food that has been cooked or frozen, and not eaten straight away. It can also be caught by handling reptiles, such as iguanas or terrapins, which commonly host the Salmonella bacteria. In March 2006, The New York Times reported that the U.S. government said that 16.3% of all chickens were contaminated with salmonella. In the mid to late 20th century, Salmonella enterica serovar Enteritidis was a common contaminant of eggs. This is much less common now with the advent of hygiene measures in egg production and the vaccination of laying hens to prevent salmonella colonisation. Many different salmonella serovars also cause severe diseases in animals other than human beings.
After bacterial infections, reactive arthritis (aka Reiters Syndrome) can develop.