Published Date: 2010-07-14 15:56:54
Subject: PRO/EAFR> Measles - Africa (26): Zambia
Archive Number: 20100714.209169
MEASLES - AFRICA (26): ZAMBIA
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International Society for Infectious Diseases
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Date: Fri 9 Jul 2010
Source: The Post Online (Zambia) [edited]
http://www.postzambia.com/post-read_article.php?articleId=3D11347&highligh=
t=3Dmeasles
Zambia's measles outbreak hits 3000, leaves 62 dead
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Zambia has so far recorded 3000 cases of measles =
in the current outbreak with 62 deaths =
registered, health ministry permanent secretary =
Dr Peter Mwaba has confirmed. Dr Mwaba has =
disclosed that adults with weak immune systems =
like HIV patients are susceptible to measles. =
Speaking to journalists in Lusaka on Thursday [8 =
Jul 2010], Dr Mwaba said there were still =
sporadic cases of measles in the country though =
the situation was being contained.
"As of Monday [5 July 2010], we had over 62 =
mortalities and those infected are close to 3000. =
Those are already controlled, not infected and =
they have been discharged from most of the =
centres. From the time of the outbreak we have =
seen over 2000 cases out of which we have over 60 mortalities," Dr Mwaba sa=
id.
"The flooding obviously made some parts =
inaccessible, meaning that we could have lost out =
on immunizing some of these children but we have =
continued with our routine immunization. But now =
most of the centres have vaccines and we will mop =
up with child week where we hope to reach most of =
the children. We have doubled our efforts."
During the media briefing, Dr Mwaba also =
disclosed that adults with depressed immunity =
were also at risk of catching measles. "We have =
patients who are between 6 months and 9 months =
getting most of these attacks. But also =
interestingly, we have seen that among adults, =
those that are immune compromised are also =
affected, we are getting a few cases among them =
but the bulk is among children," Dr Mwaba said. =
"Those are usually the ones infected with =
HIV/AIDS and those whose immunities are low for one reason or the other."
Dr Mwaba said since the epidemic had spread in =
southern Africa, Zambia would ensure that it =
conducts immunizations even in border areas. "It =
is important that we put the epidemic in this =
context, it's ravaging around southern Africa. I =
think that even as we are doing our own measures =
of control here we also need to look at the =
border areas so that we immunize those that are =
in our areas, so the child week may go as far as =
mopping up bordering areas," Dr Mwaba said.
"This is an epidemic; you expect to have sporadic =
new cases. This, we will only be able to control =
once we have immunized every child and I think =
this is why it is important that the civil =
society and the public take advantage of the =
immunization that we do. We will also immunize =
against polio. If people don't take their =
children to immunization we lose out and we have =
an epidemic like what we have right now." He said =
the routine immunization exercise would help =
immunize many children and urged parents to take =
their children for immunization.
Health minister Kapembwa Simbao, had a fortnight =
ago sent an urgent appeals to donors and =
cooperating partners for urgent assistance to =
enable government carryout a comprehensive =
immunization programme against measles and save =
lives. Mazabuka Central member of parliament Gary =
Nkombo has added his voice to concerns on =
addressing the measles outbreak. Nkombo has since =
called on the Ministry of Health to be proactive =
in efforts against the spread of measles.
What is Measles?
----------------
Measles is an infection of the respiratory system =
caused by a virus, specifically a paramyxovirus =
of the genus Morbillivirus. Symptoms of measles =
include fever, cough, running nose, red eyes and =
a generalized erythematous rash.
Measles is spread through respiration (contact =
with fluids from an infected person's nose and =
mouth, either directly or through aerosol =
transmission), and is highly contagious: 90 =
percent of people without immunity sharing a =
house with an infected person will catch it.
The infection has an average incubation period of =
14 days (range 6=AD19 days) and infectivity lasts =
from 2=AD4 days prior, until 2=AD5 days following the onset of the rash
How to avoid getting Measles
----------------------------
Instructions:
The most important way to avoid getting the =
measles is to get vaccinated. This is the =
recommend schedule for vaccinating your child =
[Position paper reference: Weekly Epid. Record (2009, 84: 349-360)]
- Reaching all children with 2 doses of the =
measles containing vaccine (MCV) should be the =
standard for all national immunization programmes.
- Delivery of the 2nd dose (MCV2) may occur =
either at a scheduled age through routine =
services or periodically through mass campaigns, =
depending on which strategy achieves the higher =
coverage. An MCV2 dose may be added to the =
routine immunization schedule in countries that =
have achieved > 80 percent coverage of measles =
1st dose (MCV1) at the national level for 3 =
consecutive years as determined by the most =
accurate means available (e.g., survey or =
WHO/UNICEF estimates). In general, countries that =
do not meet this criterion should prioritize =
improving MCV1 coverage and conducting =
high-quality follow-up SIAs, rather than adding MCV2 to their routine sched=
ule.
- In countries with ongoing transmission in which =
the risk of measles mortality remains high, MCV1 =
should be given at age 9 months. MCV2 should be =
given between 12-18 months, as providing MCV2 in =
the 2nd year of life reduces the rate of =
accumulation of susceptible children and the risk of an outbreak.
- In countries with low rates of measles =
transmission (that is, those that are near =
elimination) and where there is a low risk of =
measles infection among infants, the 1st dose may =
be administered at age 12 months to take =
advantage of the higher seroconversion rates =
achieved at this age (>90 percent =
seroconversion). In these countries the optimal =
age for delivering a routine 2nd dose of measles =
is based on programmatic considerations that =
achieve the highest coverage and hence the =
highest population immunity. Administration of =
the second dose at age 15-18 months ensures early =
protection of the individual, slows accumulation =
of susceptible young children and may correspond =
with other routine immunizations (for example, =
DTP booster). If 1st dose coverage is high (>90 =
percent) and school enrollment is high (>95 =
percent), giving the 2nd dose at school entry may =
be an effective strategy for achieving high =
coverage and preventing outbreaks in schools.
- Combined vaccines (Measles and Rubella or =
Measles, Mumps and Rubella) may not be optimal =
for use in countries where vaccine coverage for =
measles vaccine of at least 80 percent cannot be achieved or maintained.
- In areas where there is a high incidence of =
both HIV infection and measles, MCV1 may be =
offered as early as age 6 months. 2 additional =
doses of measles vaccine should be administered =
to these children according to the national immunization schedule.
[Byline: Chibaula Silwamba and Florence Bupe]
--
Communicated by:
HealthMap Alerts via ProMED-mail
<promed@promedmail.org>
[The current measles outbreaks in Southern Africa =
countries including Zambia have been attributed =
to low measles immunization coverage due to =
declining funding for the measles control =
strategy. The situation can only get worse if =
adequate funds are not mobilized to implement the =
measles immunization campaign to control the =
current outbreak. It is therefore imperative that =
the national authorities and partners mobilize =
the required resources to reverse the current measles trends.
A map showing the provinces of Zambia can be =
accessed at =
http://en.wikipedia.org/wiki/Provinces_of_Zambia, =
and the HealthMap/ProMED-mail interactive map of =
the country can be accessed at http://healthmap.org/r/017q. - Mod.JFW]