Tropical Viruses - Revision history

Maram.Ghiti@anthonynolan.org at 12:47, 25 June 2025

2025-06-25T12:47:56Z

2021-01-07T16:53:08Z

VT/WORK-UP

2021-01-07T16:52:23Z

VT/WORK-UP

2021-01-07T16:50:01Z

Definition

2016-06-09T17:51:36Z

Definition

2016-06-09T17:50:18Z

Explanation of Condition

2016-06-09T17:50:05Z

Version

2016-06-09T17:49:55Z

VT/WORK-UP

2016-06-09T17:49:34Z

VT/WORK-UP

2016-06-09T17:48:00Z

Guidance

← Older revision		Revision as of 12:47, 25 June 2025
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	Zika virus is a flavivirus that is transmitted to humans through the bite of a carrier mosquito. Zika infection is a rapid acute infection that in the majority of cases is asymptomatic or has very mild general symptoms. A small number of cases may have more apparent symptoms but hospitalisation is rare. Zika infection may be mistaken for Chikungunya or Dengue infections as the virus often co-circulate.		Zika virus is a flavivirus that is transmitted to humans through the bite of a carrier mosquito. Zika infection is a rapid acute infection that in the majority of cases is asymptomatic or has very mild general symptoms. A small number of cases may have more apparent symptoms but hospitalisation is rare. Zika infection may be mistaken for Chikungunya or Dengue infections as the virus often co-circulate.
		+
		+	For yellow fever, see [[yellow fever]].

	==Guidance==		==Guidance==

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 DEFER - If it is less than six months from a donor's return from a Tropical Virus Risk endemic area and the donor has been diagnosed or has a history of symptoms suggestive of a tropical virus infection whilst there or following their return to the UK. This period may be shortened at the discretion of the transplant centre following discussion.
-See also [[Zika Virus]]
+See also [[Zika Virus]]  Donors are excluded from donation if they have had sex less than 28 days ago with someone who has had a confirmed Zika Virus infection in the 3 months preceding the sexual contact
 '''Where NAT testing is available''' this can be undertaken in discussion with MO and TC if it is i) less than 4 weeks from a donor's return from a tropical virus endemic area ii) less than 6 months from a donors return and they have a history of symptoms suggestive of a tropical virus.

← Older revision		Revision as of 16:52, 7 January 2021
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	DEFER - If it is less than six months from a donor's return from a Tropical Virus Risk endemic area and the donor has been diagnosed or has a history of symptoms suggestive of a tropical virus infection whilst there or following their return to the UK. This period may be shortened at the discretion of the transplant centre following discussion.		DEFER - If it is less than six months from a donor's return from a Tropical Virus Risk endemic area and the donor has been diagnosed or has a history of symptoms suggestive of a tropical virus infection whilst there or following their return to the UK. This period may be shortened at the discretion of the transplant centre following discussion.
		+
		+	See also [[Zika Virus]]

	'''Where NAT testing is available''' this can be undertaken in discussion with MO and TC if it is i) less than 4 weeks from a donor's return from a tropical virus endemic area ii) less than 6 months from a donors return and they have a history of symptoms suggestive of a tropical virus.		'''Where NAT testing is available''' this can be undertaken in discussion with MO and TC if it is i) less than 4 weeks from a donor's return from a tropical virus endemic area ii) less than 6 months from a donors return and they have a history of symptoms suggestive of a tropical virus.

@@ Line 5: / Line 5: @@
 Chikungunya Virus
-Zika Virus
+Zika Virus, also see [[Zika Virus]]
 ==Acceptability at Recruitment==

← Older revision		Revision as of 17:51, 9 June 2016
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	Zika Virus		Zika Virus
−

	==Acceptability at Recruitment==		==Acceptability at Recruitment==

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 ==Explanation of Condition==
 '''
-Chikungunya Virus'''
+'''Chikungunya Virus'''
 Chikungunya is an alpha virus that can cause a wide spectrum of disease. This may range from no or minimal symptoms to death. Most commonly it causes arthritis (typically in the knee, ankle and small joints of the extremities), high fever and a maculopapular rash. It is geographically widespread but since 2005 it has reached epidemic proportions in parts of India and islands in the Indian Ocean. It is known to be spread by blood in symptomatic cases and on theoretical grounds could be spread by transfusion and transplantation of tissues and organs from people with pre-symptomatic or asymptomatic disease. A number of visitors returning from endemic areas to the UK have been diagnosed with this infection.

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 ACCEPTABLE - May donate if more than 4 weeks from a donor's return from a Tropical Virus Risk area, and the donor has had neither symptoms nor evidence of infection
-NOT ACCEPTABLE - If it is less than six months from a donor's return from a Tropical Virus Risk endemic area and the donor has been diagnosed or has a history of symptoms suggestive of a tropical virus infection whilst there or following their return to the UK. This period may be shortened at the discretion of the transplant centre following discussion.
+DEFER - If it is less than six months from a donor's return from a Tropical Virus Risk endemic area and the donor has been diagnosed or has a history of symptoms suggestive of a tropical virus infection whilst there or following their return to the UK. This period may be shortened at the discretion of the transplant centre following discussion.
+'''
-Where NAT testing is available this should be undertaken in discussion with MO and TC if i) less than 4 weeks from a donor's return ii) less than 6 months from a donors return and they have a history of symptoms suggestive of a tropical virus.
+Where NAT testing is available''' this can be undertaken in discussion with MO and TC if it is i) less than 4 weeks from a donor's return from a tropical virus endemic area ii) less than 6 months from a donors return and they have a history of symptoms suggestive of a tropical virus.
 ===Version===

← Older revision		Revision as of 17:48, 9 June 2016
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	==Guidance==		==Guidance==
		+
		+	See www.transfusionguidelines.org for up-to-date guidance

	The following applies to all tropical viruses		The following applies to all tropical viruses