Serologies are useful in epidemiological surveys. The clinical course of RSV infections is variable. In infants, RSV presents as bronchiolitis. In adults, mild to moderate upper respiratory tract illness is characteristic. However, severe pneumonia can occur, particularly in the elderly with comorbidities or compromised immune status.
The return address usually goes on the back flap of the envelope. Also, the return address used should be that of the person(s) whom you've designated to receive response cards -- be it your parents or you (traditionally, whoever is hosting the wedding handles response cards).Don't forget that the RSVP envelope should also be printed with this address (and should include postage).our invites are one of the most important elements in your day because they provide guests with crucial information. And while some details of your wedding don't follow a strict set of rules, your invitations do have a set of hard-and-fast rules to follow.
More important, though, is the simple courtesy of responding to someone who was nice enough to invite you, even if it is to say that you regret that you will not be able to attend. Many wedding invitations come with a response card that you can mail back right away. Other written invitations will carry the host's telephone number so you can call with your reply, although under strict etiquette rules, a written invitation requires a written reply.