2007-02-22 10:33:05 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Biology
They can be airborne (droplet borne, Influenza)
By direct contact
By bodily fluid transfer (blood, etc... HIV)
By sexual contact (e.g. HIV)
By wounding (e.g. bitten by rabid animal)
By insect bite (West nile virus)
They can also be tranfered throught the placenta in rare cases (again, HIV or HCV)
2007-02-26 09:02:55 · answer #1 · answered by floundering penguins 5 · 0⤊ 0⤋
A common mode of spread for viruses is through "aerosol", or "respiratory droplets". This means that particles in the air become transporters for viruses. For example, when you yawn, have you ever seen droplets come out of your mouth? Well water particles from your respiratory system can escape into the air, and get into the respiratory tracts of other people.
2007-02-22 10:44:37 · answer #2 · answered by Brian B 4 · 0⤊ 0⤋
depend on what type of viruses
some viruses can only be spread by contact (like sexual contact or blood transfusion) as they are weak and would be inactived once exposed to external environment
water-borne viruses can be spread via aqueous medium like water (from pipes), body fluids etc
air-borne viruses can be spread by air --> the viruses are floating in the air...
2007-02-23 02:32:06 · answer #3 · answered by lam_tensai 2 · 0⤊ 0⤋
Viruses are very delicate actually, and don't survive for very long outside of their host environment, but viruses can be passed through the air, open cuts, coughing, dirty, hands, sexual contact, the ocean is virus soup
2007-02-22 12:03:58 · answer #4 · answered by rizo_rocker 2 · 0⤊ 0⤋
What do you mean?Spread like in from one person to another?One country to another?Through your body?Explain.....
2007-02-22 10:44:16 · answer #5 · answered by volley 2 · 0⤊ 0⤋
1.. DIRTY HANDS
2..TOUCHING GROCERY CARTS
3..GOING IN CROWDS
4..NOT WASHING YOUR HANDS PROPER
2007-02-22 10:41:26 · answer #6 · answered by Swm 39 4 Younger Swf Forever 4 · 0⤊ 0⤋