| Symptoms
& History
Physical
Findings
Stop
& Think
Lab
and X-Ray
Differential
Diagnosis
The
Disease
Treatment
Conclusions
Quiz
& Evaluation
|
|
|
Transmission and infection
|
Transmission by virus
or infected lymphocytes
-
No casual contact transmission
-
Enters through mucosa (vaginal,
rectal, oral)
-
Direct blood inoculation with
contaminated needle
From mucosal entry
-
Virus is carried to regional
lymph nodes by Langerhans (dendritic) cells.
-
Replication in lymph node proceeds,
viruses infect other lymphoid tissues.
Direct Blood inoculation
-
viruses are rapidly cleared
by spleen and lymph nodes
-
replication begins
HIV life
cycle.
Back |
|
|