No, Pneumonia, Rickettsial is not typically transmitted through casual contact.
Rickettsial pneumonia is caused by bacteria of the genus Rickettsia, which are obligate intracellular parasites. This means they can only survive and replicate inside the cells of a host organism. Transmission of Rickettsia usually occurs through the bite of infected arthropods, such as ticks, fleas, lice, or mites. These arthropods carry the bacteria in their gut and transmit them to humans when they feed on blood.
While some forms of pneumonia can be spread through the air (like viral pneumonia), Pneumonia, Rickettsial is not considered an airborne disease. It requires direct contact with infected arthropods for transmission. Therefore, casual contact with an infected individual, such as sharing a meal or being in the same room, does not pose a risk of contracting Pneumonia, Rickettsial.