For infecting organisms to survive and repeat the infection cycle in other hosts, they (or their progeny) must leave an existing reservoir and cause infection elsewhere. Infection transmission can take place via many potential routes:


The relationship between "virulence versus transmissibility" is complex; if a disease is rapidly fatal, the host may die before the microbe can be passed along to another host.

সংক্ৰমণ হয় নে নহয়
বেক্টেৰিয়াজনিত বা ভাইৰাছজনিত
চিকিৎসা
Transmission